72336456 has 32 divisors (see below), whose sum is σ = 200935200. Its totient is φ = 24112080.

The previous prime is 72336437. The next prime is 72336461. The reversal of 72336456 is 65463327.

72336456 is a `hidden beast` number, since 7 + 2 + 3 + 3 + 645 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 72336456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167230 + ... + 167661.

It is an arithmetic number, because the mean of its divisors is an integer number (6279225).

Almost surely, 2^72336456 is an apocalyptic number.

It is an amenable number.

72336456 is an abundant number, since it is smaller than the sum of its proper divisors (128598744).

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

72336456 is a wasteful number, since it uses less digits than its factorization.

72336456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334906 (or 334896 counting only the distinct ones).

The product of its digits is 90720, while the sum is 36.

The square root of 72336456 is about 8505.0841265681. The cubic root of 72336456 is about 416.6637732777.

It can be divided in two parts, 7233 and 6456, that added together give a square (13689 = 117²).

The spelling of 72336456 in words is "seventy-two million, three hundred thirty-six thousand, four hundred fifty-six".