74445272 has 16 divisors (see below), whose sum is σ = 152274600. Its totient is φ = 33838720.

The previous prime is 74445251. The next prime is 74445277. The reversal of 74445272 is 27254447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74445277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422897 + ... + 423072.

Almost surely, 2^74445272 is an apocalyptic number.

It is an amenable number.

74445272 is an abundant number, since it is smaller than the sum of its proper divisors (77829328).

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

74445272 is a wasteful number, since it uses less digits than its factorization.

74445272 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845986 (or 845982 counting only the distinct ones).

The product of its digits is 62720, while the sum is 35.

The square root of 74445272 is about 8628.1673604538. The cubic root of 74445272 is about 420.6740348579.

The spelling of 74445272 in words is "seventy-four million, four hundred forty-five thousand, two hundred seventy-two".