72452456 has 16 divisors (see below), whose sum is σ = 140231040. Its totient is φ = 35057520.

The previous prime is 72452441. The next prime is 72452467. The reversal of 72452456 is 65425427.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145826 + ... + 146321.

It is an arithmetic number, because the mean of its divisors is an integer number (8764440).

Almost surely, 2^72452456 is an apocalyptic number.

It is an amenable number.

72452456 is a deficient number, since it is larger than the sum of its proper divisors (67778584).

72452456 is a wasteful number, since it uses less digits than its factorization.

72452456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292184 (or 292180 counting only the distinct ones).

The product of its digits is 67200, while the sum is 35.

The square root of 72452456 is about 8511.9008452871. The cubic root of 72452456 is about 416.8863774227.

The spelling of 72452456 in words is "seventy-two million, four hundred fifty-two thousand, four hundred fifty-six".