38736864 has 36 divisors (see below), whose sum is σ = 110158776. Its totient is φ = 12912192.

The previous prime is 38736821. The next prime is 38736913. The reversal of 38736864 is 46863783.

It is a tau number, because it is divible by the number of its divisors (36).

It is a zygodrome in base 3.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66964 + ... + 67539.

It is an arithmetic number, because the mean of its divisors is an integer number (3059966).

Almost surely, 2^38736864 is an apocalyptic number.

It is an amenable number.

38736864 is an abundant number, since it is smaller than the sum of its proper divisors (71421912).

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

38736864 is a wasteful number, since it uses less digits than its factorization.

38736864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134519 (or 134508 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 38736864 is about 6223.8946006500. The cubic root of 38736864 is about 338.3567303796.

The spelling of 38736864 in words is "thirty-eight million, seven hundred thirty-six thousand, eight hundred sixty-four".