72549316 has 24 divisors (see below), whose sum is σ = 145325376. Its totient is φ = 31044000.

The previous prime is 72549293. The next prime is 72549343. The reversal of 72549316 is 61394527.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20691 + ... + 23941.

It is an arithmetic number, because the mean of its divisors is an integer number (6055224).

Almost surely, 2^72549316 is an apocalyptic number.

It is an amenable number.

72549316 is an abundant number, since it is smaller than the sum of its proper divisors (72776060).

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

72549316 is a wasteful number, since it uses less digits than its factorization.

72549316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4059 (or 4057 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 72549316 is about 8517.5886258964. The cubic root of 72549316 is about 417.0720699255.

The spelling of 72549316 in words is "seventy-two million, five hundred forty-nine thousand, three hundred sixteen".