38615928 has 64 divisors (see below), whose sum is σ = 105722400. Its totient is φ = 11681280.

The previous prime is 38615921. The next prime is 38615933. The reversal of 38615928 is 82951683.

It is a self number, because there is not a number n which added to its sum of digits gives 38615928.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38615921) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18018 + ... + 20046.

Almost surely, 2^38615928 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 38615928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52861200).

38615928 is an abundant number, since it is smaller than the sum of its proper divisors (67106472).

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

38615928 is a wasteful number, since it uses less digits than its factorization.

38615928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112 (or 2108 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 38615928 is about 6214.1715457493. The cubic root of 38615928 is about 338.0042481639.

The spelling of 38615928 in words is "thirty-eight million, six hundred fifteen thousand, nine hundred twenty-eight".