538039928 has 32 divisors (see below), whose sum is σ = 1031832000. Its totient is φ = 262953600.

The previous prime is 538039921. The next prime is 538039969. The reversal of 538039928 is 829930835.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (538039921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59618 + ... + 68046.

It is an arithmetic number, because the mean of its divisors is an integer number (32244750).

Almost surely, 2^538039928 is an apocalyptic number.

It is an amenable number.

538039928 is a deficient number, since it is larger than the sum of its proper divisors (493792072).

538039928 is a wasteful number, since it uses less digits than its factorization.

538039928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8615 (or 8611 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 47.

The square root of 538039928 is about 23195.6877026744. The cubic root of 538039928 is about 813.3388212177.

The spelling of 538039928 in words is "five hundred thirty-eight million, thirty-nine thousand, nine hundred twenty-eight".