820,400 in words
820,400
eight hundred and twenty thousand four hundred
820,400 is written eight hundred and twenty thousand four hundred.
Ways to write it
- As an ordinal
- eight hundred and twenty thousand four hundredth
- Expanded form
- 800,000 + 20,000 + 400
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 8 | 800,000 |
| 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
- 820,400, 1,640,800, 2,461,200, 3,281,600, 4,102,000, 4,922,400, 5,742,800, 6,563,200, 7,383,600, 8,204,000
- Square
- 820,400 × 820,400 = 673,056,160,000
- Square root
- ≈ 905.76
- Sum of the digits
- 8 + 2 + 0 + 4 + 0 + 0 = 14
- Rounded to the nearest 10
- 820,400
- Rounded to the nearest 100
- 820,400
- Rounded to the nearest 1000
- 820,000
- Number before
- 820,399
- Number after
- 820,401
- In binary
11001000010010110000
Quick check
What number comes just after 820,400?
Show the answer
820,401
Is 820,400 even or odd?
Show the answer
Even
What is 820,400 + 10?
Show the answer
820,410
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 820,400 in words?
820,400 is written "eight hundred and twenty thousand four hundred".
Is 820,400 a prime number?
No. 820,400 is a composite number, because it has more than two factors.