238090904 has 16 divisors (see below), whose sum is σ = 449003520. Its totient is φ = 118356640.

The previous prime is 238090847. The next prime is 238090907. The reversal of 238090904 is 409090832.

238090904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (238090907) 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, 84632 + ... + 87399.

It is an arithmetic number, because the mean of its divisors is an integer number (28062720).

Almost surely, 2^238090904 is an apocalyptic number.

It is an amenable number.

238090904 is a deficient number, since it is larger than the sum of its proper divisors (210912616).

238090904 is a wasteful number, since it uses less digits than its factorization.

238090904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172210 (or 172206 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 35.

The square root of 238090904 is about 15430.1945548331. The cubic root of 238090904 is about 619.7943334487.

The spelling of 238090904 in words is "two hundred thirty-eight million, ninety thousand, nine hundred four".