38656728 has 48 divisors (see below), whose sum is σ = 114215400. Its totient is φ = 11713920.

The previous prime is 38656711. The next prime is 38656729. The reversal of 38656728 is 82765683.

38656728 is a `hidden beast` number, since 3 + 86 + 567 + 2 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38656729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 23613 + ... + 25196.

Almost surely, 2^38656728 is an apocalyptic number.

It is an amenable number.

38656728 is an abundant number, since it is smaller than the sum of its proper divisors (75558672).

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

38656728 is a wasteful number, since it uses less digits than its factorization.

38656728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48832 (or 48825 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 38656728 is about 6217.4534980167. The cubic root of 38656728 is about 338.1232467226.

The spelling of 38656728 in words is "thirty-eight million, six hundred fifty-six thousand, seven hundred twenty-eight".