20,400 in words
20,400
twenty thousand four hundred
20,400 is written twenty thousand four hundred.
Ways to write it
- As an ordinal
- twenty thousand four hundredth
- Expanded form
- 20,000 + 400
Place value
| Place | Digit | Value |
|---|---|---|
| ten thousands | 2 | 20,000 |
| thousands | 0 | 0 |
| hundreds | 4 | 400 |
| tens | 0 | 0 |
| ones | 0 | 0 |
Number facts
- Even or odd
- Even
- Prime or composite
- Composite
- Factors
- 60 factors: too many to list
- First 10 multiples
- 20,400, 40,800, 61,200, 81,600, 102,000, 122,400, 142,800, 163,200, 183,600, 204,000
- Square
- 20,400 × 20,400 = 416,160,000
- Square root
- ≈ 142.83
- Sum of the digits
- 2 + 0 + 4 + 0 + 0 = 6
- Rounded to the nearest 10
- 20,400
- Rounded to the nearest 100
- 20,400
- Rounded to the nearest 1000
- 20,000
- Number before
- 20,399
- Number after
- 20,401
- In binary
100111110110000
Quick check
What number comes just after 20,400?
Show the answer
20,401
Is 20,400 even or odd?
Show the answer
Even
What is 20,400 + 10?
Show the answer
20,410
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 20,400 in words?
20,400 is written "twenty thousand four hundred".
Is 20,400 a prime number?
No. 20,400 is a composite number, because it has more than two factors.