538904 has 32 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 249600.

The previous prime is 538877. The next prime is 538921. The reversal of 538904 is 409835.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10142 + ... + 10194.

It is an arithmetic number, because the mean of its divisors is an integer number (34020).

2⁵³⁸⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

538904 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

538904 is a wasteful number, since it uses less digits than its factorization.

538904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131 (or 127 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 538904 is about 734.1008105158. The cubic root of 538904 is about 81.3773985590.

The spelling of 538904 in words is "five hundred thirty-eight thousand, nine hundred four".