538921504 has 24 divisors (see below), whose sum is σ = 1157457168. Its totient is φ = 244964160.

The previous prime is 538921483. The next prime is 538921511. The reversal of 538921504 is 405129835.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765162 + ... + 765865.

It is an arithmetic number, because the mean of its divisors is an integer number (48227382).

Almost surely, 2^538921504 is an apocalyptic number.

It is an amenable number.

538921504 is an abundant number, since it is smaller than the sum of its proper divisors (618535664).

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

538921504 is a wasteful number, since it uses less digits than its factorization.

538921504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531048 (or 1531040 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 538921504 is about 23214.6829398982. The cubic root of 538921504 is about 813.7827961547.

The spelling of 538921504 in words is "five hundred thirty-eight million, nine hundred twenty-one thousand, five hundred four".