72418468 has 12 divisors (see below), whose sum is σ = 128810332. Its totient is φ = 35615520.

The previous prime is 72418459. The next prime is 72418523. The reversal of 72418468 is 86481427.

It can be written as a sum of positive squares in 2 ways, for example, as 14992384 + 57426084 = 3872^2 + 7578^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 72418468.

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, 148155 + ... + 148642.

Almost surely, 2^72418468 is an apocalyptic number.

It is an amenable number.

72418468 is a deficient number, since it is larger than the sum of its proper divisors (56391864).

72418468 is a wasteful number, since it uses less digits than its factorization.

72418468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296862 (or 296860 counting only the distinct ones).

The product of its digits is 86016, while the sum is 40.

The square root of 72418468 is about 8509.9041122682. The cubic root of 72418468 is about 416.8211790329.

The spelling of 72418468 in words is "seventy-two million, four hundred eighteen thousand, four hundred sixty-eight".