401,021 in words
401,021
four hundred and one thousand and twenty-one
401,021 is written four hundred and one thousand and twenty-one.
Ways to write it
- As an ordinal
- four hundred and one thousand and twenty-first
- Expanded form
- 400,000 + 1,000 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 0 | 0 |
| thousands | 1 | 1,000 |
| hundreds | 0 | 0 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 41, 9,781 and 401,021 (4 factors)
- First 10 multiples
- 401,021, 802,042, 1,203,063, 1,604,084, 2,005,105, 2,406,126, 2,807,147, 3,208,168, 3,609,189, 4,010,210
- Square
- 401,021 × 401,021 = 160,817,842,441
- Square root
- ≈ 633.26
- Sum of the digits
- 4 + 0 + 1 + 0 + 2 + 1 = 8
- Rounded to the nearest 10
- 401,020
- Rounded to the nearest 100
- 401,000
- Rounded to the nearest 1000
- 401,000
- Number before
- 401,020
- Number after
- 401,022
- In binary
1100001111001111101
Quick check
What number comes just after 401,021?
Show the answer
401,022
Is 401,021 even or odd?
Show the answer
Odd
What is 401,021 + 10?
Show the answer
401,031
Practise with a game
Factors, Multiples & Primes
Multiples, factors, prime numbers, square numbers and prime factors.
Number Patterns
Find the missing number in a sequence.Frequently asked questions
How do you write 401,021 in words?
401,021 is written "four hundred and one thousand and twenty-one".
Is 401,021 a prime number?
No. 401,021 is a composite number, because it has more than two factors.
What are the factors of 401,021?
The factors of 401,021 are 1, 41, 9,781 and 401,021.