72578112 has 28 divisors (see below), whose sum is σ = 192030096. Its totient is φ = 24192640.

The previous prime is 72578089. The next prime is 72578113. The reversal of 72578112 is 21187527.

It is not an unprimeable number, because it can be changed into a prime (72578113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188814 + ... + 189197.

Almost surely, 2^72578112 is an apocalyptic number.

It is an amenable number.

72578112 is an abundant number, since it is smaller than the sum of its proper divisors (119451984).

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

72578112 is a wasteful number, since it uses less digits than its factorization.

72578112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378026 (or 378016 counting only the distinct ones).

The product of its digits is 7840, while the sum is 33.

The square root of 72578112 is about 8519.2788427190. The cubic root of 72578112 is about 417.1272435157.

The spelling of 72578112 in words is "seventy-two million, five hundred seventy-eight thousand, one hundred twelve".