72359312 has 10 divisors (see below), whose sum is σ = 140196198. Its totient is φ = 36179648.

The previous prime is 72359299. The next prime is 72359333. The reversal of 72359312 is 21395327.

It can be written as a sum of positive squares in only one way, i.e., 44943616 + 27415696 = 6704^2 + 5236^2 .

It is a super-2 number, since 2×72359312² = 10471740066226688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2261213 + ... + 2261244.

Almost surely, 2^72359312 is an apocalyptic number.

It is an amenable number.

72359312 is a deficient number, since it is larger than the sum of its proper divisors (67836886).

72359312 is a wasteful number, since it uses less digits than its factorization.

72359312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522465 (or 4522459 counting only the distinct ones).

The product of its digits is 11340, while the sum is 32.

The square root of 72359312 is about 8506.4276873433. The cubic root of 72359312 is about 416.7076527860.

The spelling of 72359312 in words is "seventy-two million, three hundred fifty-nine thousand, three hundred twelve".