238920904 has 16 divisors (see below), whose sum is σ = 450985500. Its totient is φ = 118658112.

The previous prime is 238920901. The next prime is 238920911. The reversal of 238920904 is 409029832.

238920904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 237098404 + 1822500 = 15398^2 + 1350^2 .

It is not an unprimeable number, because it can be changed into a prime (238920901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99027 + ... + 101410.

Almost surely, 2^238920904 is an apocalyptic number.

It is an amenable number.

238920904 is a deficient number, since it is larger than the sum of its proper divisors (212064596).

238920904 is a wasteful number, since it uses less digits than its factorization.

238920904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200592 (or 200588 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 238920904 is about 15457.0664745934. The cubic root of 238920904 is about 620.5137122874.

The spelling of 238920904 in words is "two hundred thirty-eight million, nine hundred twenty thousand, nine hundred four".