1,000,000
1,000,000 (one million) is 10⁶, the value of the SI prefix mega-, and the square of 1000.
Where 1,000,000 fits
Why 1,000,000 is special
One million is the first of the large round numbers most people use as a genuine mental threshold rather than a countable quantity — it is 10⁶, the value of the SI prefix mega- (a megawatt is a million watts), and cleanly 1000². 'Millionaire' has marked a wealth threshold in English since the 18th century.
Same number, different meanings
How 1,000,000 is understood across different contexts — never implying one meaning because of another.
- Mathematics
One million is the first of the large round numbers most people use as a genuine mental threshold rather than a countable quantity — it is 10⁶, the value of the SI prefix mega- (a megawatt is a million watts), and cleanly 1000². 'Millionaire' has marked a wealth threshold in English since the 18th century.
- Everyday life
'Millionaire' has denoted a person whose wealth reaches one million currency units in English since the 18th century, making one million a long-standing informal threshold of wealth rather than a counted quantity.
- Science
The SI prefix mega- denotes a factor of 10⁶, one million — so a megawatt is one million watts and a megahertz one million hertz.
1,000,000 is part of
Factors & digit properties
- Divisors (49)
- 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 2000, 2500, 3125, 4000, 5000, 6250, 8000, 10000, 12500, 15625, 20000, 25000, 31250, 40000, 50000, 62500, 100000, 125000, 200000, 250000, 500000, 1000000
- Prime factorisation
- 2^6 × 5^6
- Digit sum
- 1
- Digital root
- 1
Representations
- Decimal
- 1000000
- Scientific notation
- 1.000 × 10^6
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 1 1 1 0 1 0 0 0 0 1 0 0 1 0 0 0 0 0 0
1 × 524,288 + 1 × 262,144 + 1 × 131,072 + 1 × 65,536 + 0 × 32,768 + 1 × 16,384 + 0 × 8,192 + 0 × 4,096 + 0 × 2,048 + 0 × 1,024 + 1 × 512 + 0 × 256 + 0 × 128 + 1 × 64 + 0 × 32 + 0 × 16 + 0 × 8 + 0 × 4 + 0 × 2 + 0 × 1 = 1,000,000
Octal
3 6 4 1 1 0 0
3 × 262,144 + 6 × 32,768 + 4 × 4,096 + 1 × 512 + 1 × 64 + 0 × 8 + 0 × 1 = 1,000,000
Hexadecimal
f 4 2 4 0
f × 65,536 + 4 × 4,096 + 2 × 256 + 4 × 16 + 0 × 1 = 1,000,000
Read as powers of two: 524,288 + 262,144 + 131,072 + 65,536 + 16,384 + 512 + 64 = 1,000,000.
In historical numeral systems
Egyptian
1 Heh figure
1 × 1,000,000 = 1,000,000. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Abundant number
- Happy number
- Powerful number
- Harshad (Niven) number
Related numbers & connections
One million is the square of 1000 (1000² = 1,000,000).
View 1000 →Mathematically related
- is the square of1000
why?
Strength 0.50, confidence "high".
Everyday life
'Millionaire' has denoted a person whose wealth reaches one million currency units in English since the 18th century, making one million a long-standing informal threshold of wealth rather than a counted quantity.
DocumentedEveryday life
Science
The SI prefix mega- denotes a factor of 10⁶, one million — so a megawatt is one million watts and a megahertz one million hertz.
DocumentedScience
Common questions
Is 1,000,000 a prime number?
No, 1,000,000 is not prime.
What are the factors of 1,000,000?
The factors of 1,000,000 are 1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 160, 200, 250, 320, 400, 500, 625, 800, 1000, 1250, 1600, 2000, 2500, 3125, 4000, 5000, 6250, 8000, 10000, 12500, 15625, 20000, 25000, 31250, 40000, 50000, 62500, 100000, 125000, 200000, 250000, 500000, 1000000.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026