72501384 has 16 divisors (see below), whose sum is σ = 181253520. Its totient is φ = 24167120.

The previous prime is 72501361. The next prime is 72501409. The reversal of 72501384 is 48310527.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1510422 + ... + 1510469.

It is an arithmetic number, because the mean of its divisors is an integer number (11328345).

Almost surely, 2^72501384 is an apocalyptic number.

It is an amenable number.

72501384 is an abundant number, since it is smaller than the sum of its proper divisors (108752136).

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

72501384 is a wasteful number, since it uses less digits than its factorization.

72501384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020900 (or 3020896 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 72501384 is about 8514.7744538537. The cubic root of 72501384 is about 416.9801990724.

The spelling of 72501384 in words is "seventy-two million, five hundred one thousand, three hundred eighty-four".