72750456 has 24 divisors (see below), whose sum is σ = 197032680. Its totient is φ = 24250128.

The previous prime is 72750443. The next prime is 72750493. The reversal of 72750456 is 65405727.

It is a tau number, because it is divible by the number of its divisors (24).

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 72750456.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 505140 + ... + 505283.

It is an arithmetic number, because the mean of its divisors is an integer number (8209695).

Almost surely, 2^72750456 is an apocalyptic number.

It is an amenable number.

72750456 is an abundant number, since it is smaller than the sum of its proper divisors (124282224).

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

72750456 is a wasteful number, since it uses less digits than its factorization.

72750456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010435 (or 1010428 counting only the distinct ones).

The product of its (nonzero) digits is 58800, while the sum is 36.

The square root of 72750456 is about 8529.3877857675. The cubic root of 72750456 is about 417.4571526659.

The spelling of 72750456 in words is "seventy-two million, seven hundred fifty thousand, four hundred fifty-six".