38021568 has 56 divisors (see below), whose sum is σ = 108344208. Its totient is φ = 11698176.

The previous prime is 38021561. The next prime is 38021587. The reversal of 38021568 is 86512083.

It is a happy number.

It is a Smith number, since the sum of its digits (33) 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 (38021561) 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, 5121 + ... + 10112.

It is an arithmetic number, because the mean of its divisors is an integer number (1934718).

Almost surely, 2^38021568 is an apocalyptic number.

It is an amenable number.

38021568 is an abundant number, since it is smaller than the sum of its proper divisors (70322640).

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

38021568 is a wasteful number, since it uses less digits than its factorization.

38021568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15261 (or 15251 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 33.

The square root of 38021568 is about 6166.1631506148. The cubic root of 38021568 is about 336.2611348653.

The spelling of 38021568 in words is "thirty-eight million, twenty-one thousand, five hundred sixty-eight".