388,421 in words
388,421
three hundred and eighty-eight thousand four hundred and twenty-one
388,421 is written three hundred and eighty-eight thousand four hundred and twenty-one.
Ways to write it
- As an ordinal
- three hundred and eighty-eight thousand four hundred and twenty-first
- Expanded form
- 300,000 + 80,000 + 8,000 + 400 + 20 + 1
Place value
| Place | Digit | Value |
|---|---|---|
| hundred thousands | 3 | 300,000 |
| ten thousands | 8 | 80,000 |
| thousands | 8 | 8,000 |
| hundreds | 4 | 400 |
| tens | 2 | 20 |
| ones | 1 | 1 |
Number facts
- Even or odd
- Odd
- Prime or composite
- Composite
- Factors
- 1, 11, 35,311 and 388,421 (4 factors)
- First 10 multiples
- 388,421, 776,842, 1,165,263, 1,553,684, 1,942,105, 2,330,526, 2,718,947, 3,107,368, 3,495,789, 3,884,210
- Square
- 388,421 × 388,421 = 150,870,873,241
- Square root
- ≈ 623.23
- Sum of the digits
- 3 + 8 + 8 + 4 + 2 + 1 = 26
- Rounded to the nearest 10
- 388,420
- Rounded to the nearest 100
- 388,400
- Rounded to the nearest 1000
- 388,000
- Number before
- 388,420
- Number after
- 388,422
- In binary
1011110110101000101
Quick check
What number comes just after 388,421?
Show the answer
388,422
Is 388,421 even or odd?
Show the answer
Odd
What is 388,421 + 10?
Show the answer
388,431
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 388,421 in words?
388,421 is written "three hundred and eighty-eight thousand four hundred and twenty-one".
Is 388,421 a prime number?
No. 388,421 is a composite number, because it has more than two factors.
What are the factors of 388,421?
The factors of 388,421 are 1, 11, 35,311 and 388,421.