72448312 has 16 divisors (see below), whose sum is σ = 139154400. Its totient is φ = 35340480.

The previous prime is 72448307. The next prime is 72448319. The reversal of 72448312 is 21384427.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72448319) 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, 110112 + ... + 110767.

It is an arithmetic number, because the mean of its divisors is an integer number (8697150).

Almost surely, 2^72448312 is an apocalyptic number.

It is an amenable number.

72448312 is a deficient number, since it is larger than the sum of its proper divisors (66706088).

72448312 is a wasteful number, since it uses less digits than its factorization.

72448312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220926 (or 220922 counting only the distinct ones).

The product of its digits is 10752, while the sum is 31.

The square root of 72448312 is about 8511.6574179181. The cubic root of 72448312 is about 416.8784291755.

The spelling of 72448312 in words is "seventy-two million, four hundred forty-eight thousand, three hundred twelve".