238904 has 8 divisors (see below), whose sum is σ = 447960. Its totient is φ = 119448.

The previous prime is 238897. The next prime is 238919. The reversal of 238904 is 409832.

238904 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14924 + ... + 14939.

It is an arithmetic number, because the mean of its divisors is an integer number (55995).

2²³⁸⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

238904 is a deficient number, since it is larger than the sum of its proper divisors (209056).

238904 is a wasteful number, since it uses less digits than its factorization.

238904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29869 (or 29865 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 238904 is about 488.7780682477. The cubic root of 238904 is about 62.0499077861.

The spelling of 238904 in words is "two hundred thirty-eight thousand, nine hundred four".