238983728 has 30 divisors (see below), whose sum is σ = 469802892. Its totient is φ = 117769120.

The previous prime is 238983709. The next prime is 238983733. The reversal of 238983728 is 827389832.

238983728 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×238983728² = 114226444497555968, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 79175 + ... + 82137.

Almost surely, 2^238983728 is an apocalyptic number.

It is an amenable number.

238983728 is a deficient number, since it is larger than the sum of its proper divisors (230819164).

238983728 is an equidigital number, since it uses as much as digits as its factorization.

238983728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3113 (or 3036 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 50.

The square root of 238983728 is about 15459.0985506918. The cubic root of 238983728 is about 620.5680953300.

The spelling of 238983728 in words is "two hundred thirty-eight million, nine hundred eighty-three thousand, seven hundred twenty-eight".