74144172 has 24 divisors (see below), whose sum is σ = 173157376. Its totient is φ = 24692688.

The previous prime is 74144131. The next prime is 74144173. The reversal of 74144172 is 27144147.

It is not an unprimeable number, because it can be changed into a prime (74144173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16833 + ... + 20775.

Almost surely, 2^74144172 is an apocalyptic number.

It is an amenable number.

74144172 is an abundant number, since it is smaller than the sum of its proper divisors (99013204).

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

74144172 is a wasteful number, since it uses less digits than its factorization.

74144172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5517 (or 5515 counting only the distinct ones).

The product of its digits is 6272, while the sum is 30.

The square root of 74144172 is about 8610.7010167582. The cubic root of 74144172 is about 420.1061183103.

The spelling of 74144172 in words is "seventy-four million, one hundred forty-four thousand, one hundred seventy-two".