400,421 in words
400,421
four hundred thousand four hundred twenty-one
400,421 is written four hundred thousand four hundred twenty-one.
Ways to write it
- As an ordinal
- four hundred thousand four hundred twenty-first
- Expanded form
- 400,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 4 | 400,000 |
| ten thousands | 0 | 0 |
| thousands | 0 | 0 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 7, 57,203 and 400,421 (4 factors)
- First 10 multiples
- 400,421, 800,842, 1,201,263, 1,601,684, 2,002,105, 2,402,526, 2,802,947, 3,203,368, 3,603,789, 4,004,210
- Square
- 400,421 × 400,421 = 160,336,977,241
- Square root
- ≈ 632.79
- Sum of the digits
- 4 + 0 + 0 + 4 + 2 + 1 = 11
- Rounded to the nearest 10
- 400,420
- Rounded to the nearest 100
- 400,400
- Rounded to the nearest 1000
- 400,000
- Number before
- 400,420
- Number after
- 400,422
- In binary
1100001110000100101
Quick check
What number comes just after 400,421?
Show the answer
400,422
Is 400,421 even or odd?
Show the answer
Odd
What is 400,421 + 10?
Show the answer
400,431
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 400,421 in words?
400,421 is written "four hundred thousand four hundred twenty-one".
Is 400,421 a prime number?
No. 400,421 is a composite number, because it has more than two factors.
What are the factors of 400,421?
The factors of 400,421 are 1, 7, 57,203 and 400,421.