72648456 has 32 divisors (see below), whose sum is σ = 182057760. Its totient is φ = 24157952.

The previous prime is 72648413. The next prime is 72648487. The reversal of 72648456 is 65484627.

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, 7216 + ... + 14048.

It is an arithmetic number, because the mean of its divisors is an integer number (5689305).

Almost surely, 2^72648456 is an apocalyptic number.

It is an amenable number.

72648456 is an abundant number, since it is smaller than the sum of its proper divisors (109409304).

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

72648456 is a wasteful number, since it uses less digits than its factorization.

72648456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7285 (or 7281 counting only the distinct ones).

The product of its digits is 322560, while the sum is 42.

The square root of 72648456 is about 8523.4063613088. The cubic root of 72648456 is about 417.2619623879.

The spelling of 72648456 in words is "seventy-two million, six hundred forty-eight thousand, four hundred fifty-six".