238565838 has 32 divisors (see below), whose sum is σ = 550702080. Its totient is φ = 67485600.

The previous prime is 238565813. The next prime is 238565857. The reversal of 238565838 is 838565832.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

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, 23878 + ... + 32361.

It is an arithmetic number, because the mean of its divisors is an integer number (17209440).

Almost surely, 2^238565838 is an apocalyptic number.

238565838 is an abundant number, since it is smaller than the sum of its proper divisors (312136242).

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

238565838 is a wasteful number, since it uses less digits than its factorization.

238565838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56352.

The product of its digits is 1382400, while the sum is 48.

The square root of 238565838 is about 15445.5766483482. The cubic root of 238565838 is about 620.2061731942.

The spelling of 238565838 in words is "two hundred thirty-eight million, five hundred sixty-five thousand, eight hundred thirty-eight".