72174474 has 24 divisors (see below), whose sum is σ = 157249092. Its totient is φ = 23924160.

The previous prime is 72174463. The next prime is 72174493. The reversal of 72174474 is 47447127.

It can be written as a sum of positive squares in 2 ways, for example, as 48233025 + 23941449 = 6945^2 + 4893^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7819 + ... + 14334.

Almost surely, 2^72174474 is an apocalyptic number.

72174474 is an abundant number, since it is smaller than the sum of its proper divisors (85074618).

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

72174474 is a wasteful number, since it uses less digits than its factorization.

72174474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22342 (or 22339 counting only the distinct ones).

The product of its digits is 43904, while the sum is 36.

The square root of 72174474 is about 8495.5561324730. The cubic root of 72174474 is about 416.3525310825.

The spelling of 72174474 in words is "seventy-two million, one hundred seventy-four thousand, four hundred seventy-four".