238872738 has 32 divisors (see below), whose sum is σ = 515793600. Its totient is φ = 73313856.

The previous prime is 238872721. The next prime is 238872743. The reversal of 238872738 is 837278832.

238872738 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 29028 + ... + 36336.

It is an arithmetic number, because the mean of its divisors is an integer number (16118550).

Almost surely, 2^238872738 is an apocalyptic number.

238872738 is an abundant number, since it is smaller than the sum of its proper divisors (276920862).

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

238872738 is a wasteful number, since it uses less digits than its factorization.

238872738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7746.

The product of its digits is 903168, while the sum is 48.

The square root of 238872738 is about 15455.5083384533. The cubic root of 238872738 is about 620.4720113568.

The spelling of 238872738 in words is "two hundred thirty-eight million, eight hundred seventy-two thousand, seven hundred thirty-eight".