72398152 has 32 divisors (see below), whose sum is σ = 141017400. Its totient is φ = 34804224.

The previous prime is 72398147. The next prime is 72398177. The reversal of 72398152 is 25189327.

It can be written as a sum of positive squares in 4 ways, for example, as 53787556 + 18610596 = 7334^2 + 4314^2 .

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, 72118 + ... + 73114.

Almost surely, 2^72398152 is an apocalyptic number.

It is an amenable number.

72398152 is a deficient number, since it is larger than the sum of its proper divisors (68619248).

72398152 is a wasteful number, since it uses less digits than its factorization.

72398152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1345 (or 1341 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 72398152 is about 8508.7103605658. The cubic root of 72398152 is about 416.7821975811.

The spelling of 72398152 in words is "seventy-two million, three hundred ninety-eight thousand, one hundred fifty-two".