38904534 has 24 divisors (see below), whose sum is σ = 89252280. Its totient is φ = 12205248.

The previous prime is 38904529. The next prime is 38904563. The reversal of 38904534 is 43540983.

38904534 is a `hidden beast` number, since 38 + 90 + 4 + 534 = 666.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 63264 + ... + 63875.

It is an arithmetic number, because the mean of its divisors is an integer number (3718845).

Almost surely, 2^38904534 is an apocalyptic number.

38904534 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

38904534 is an abundant number, since it is smaller than the sum of its proper divisors (50347746).

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

38904534 is a wasteful number, since it uses less digits than its factorization.

38904534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127164 (or 127161 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 38904534 is about 6237.3499180341. The cubic root of 38904534 is about 338.8442127535.

The spelling of 38904534 in words is "thirty-eight million, nine hundred four thousand, five hundred thirty-four".