238830720 has 128 divisors (see below), whose sum is σ = 775967040. Its totient is φ = 62459904.

The previous prime is 238830701. The next prime is 238830743. The reversal of 238830720 is 27038832.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-2 number, since 2×238830720² = 114080225631436800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100587 + ... + 102933.

Almost surely, 2^238830720 is an apocalyptic number.

238830720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 238830720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (387983520).

238830720 is an abundant number, since it is smaller than the sum of its proper divisors (537136320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

238830720 is a wasteful number, since it uses less digits than its factorization.

238830720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2422 (or 2410 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 238830720 is about 15454.1489574806. The cubic root of 238830720 is about 620.4356286341.

The spelling of 238830720 in words is "two hundred thirty-eight million, eight hundred thirty thousand, seven hundred twenty".