238686568 has 8 divisors (see below), whose sum is σ = 447537330. Its totient is φ = 119343280.

The previous prime is 238686557. The next prime is 238686599. The reversal of 238686568 is 865686832.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 190495204 + 48191364 = 13802^2 + 6942^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14917903 + ... + 14917918.

Almost surely, 2^238686568 is an apocalyptic number.

It is an amenable number.

238686568 is a deficient number, since it is larger than the sum of its proper divisors (208850762).

238686568 is a wasteful number, since it uses less digits than its factorization.

238686568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29835827 (or 29835823 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 52.

The square root of 238686568 is about 15449.4843926909. The cubic root of 238686568 is about 620.3107772516.

The spelling of 238686568 in words is "two hundred thirty-eight million, six hundred eighty-six thousand, five hundred sixty-eight".