38913072 has 40 divisors (see below), whose sum is σ = 109665600. Its totient is φ = 11791680.

The previous prime is 38913071. The next prime is 38913089. The reversal of 38913072 is 27031983.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38913071) 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, 36322 + ... + 37377.

It is an arithmetic number, because the mean of its divisors is an integer number (2741640).

Almost surely, 2^38913072 is an apocalyptic number.

It is an amenable number.

38913072 is an abundant number, since it is smaller than the sum of its proper divisors (70752528).

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

38913072 is a wasteful number, since it uses less digits than its factorization.

38913072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73721 (or 73715 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 38913072 is about 6238.0343057729. The cubic root of 38913072 is about 338.8689985559.

The spelling of 38913072 in words is "thirty-eight million, nine hundred thirteen thousand, seventy-two".