538903504 has 40 divisors (see below), whose sum is σ = 1100786688. Its totient is φ = 255200640.

The previous prime is 538903493. The next prime is 538903529. The reversal of 538903504 is 405309835.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11754 + ... + 34870.

Almost surely, 2^538903504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 538903504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550393344).

538903504 is an abundant number, since it is smaller than the sum of its proper divisors (561883184).

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

538903504 is a wasteful number, since it uses less digits than its factorization.

538903504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23203 (or 23197 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 538903504 is about 23214.2952509871. The cubic root of 538903504 is about 813.7737359277.

The spelling of 538903504 in words is "five hundred thirty-eight million, nine hundred three thousand, five hundred four".