238631564 has 12 divisors (see below), whose sum is σ = 439584600. Its totient is φ = 113035968.

The previous prime is 238631501. The next prime is 238631581. The reversal of 238631564 is 465136832.

238631564 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1569869 + ... + 1570020.

It is an arithmetic number, because the mean of its divisors is an integer number (36632050).

Almost surely, 2^238631564 is an apocalyptic number.

It is an amenable number.

238631564 is a deficient number, since it is larger than the sum of its proper divisors (200953036).

238631564 is a wasteful number, since it uses less digits than its factorization.

238631564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3139912 (or 3139910 counting only the distinct ones).

The product of its digits is 103680, while the sum is 38.

The square root of 238631564 is about 15447.7041659918. The cubic root of 238631564 is about 620.2631245279.

The spelling of 238631564 in words is "two hundred thirty-eight million, six hundred thirty-one thousand, five hundred sixty-four".