74472912 has 160 divisors (see below), whose sum is σ = 226652160. Its totient is φ = 23379840.

The previous prime is 74472911. The next prime is 74472917. The reversal of 74472912 is 21927447.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74472911) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 897223 + ... + 897305.

It is an arithmetic number, because the mean of its divisors is an integer number (1416576).

Almost surely, 2^74472912 is an apocalyptic number.

74472912 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74472912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (113326080).

74472912 is an abundant number, since it is smaller than the sum of its proper divisors (152179248).

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

74472912 is a wasteful number, since it uses less digits than its factorization.

74472912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198 (or 186 counting only the distinct ones).

The product of its digits is 28224, while the sum is 36.

The square root of 74472912 is about 8629.7689424457. The cubic root of 74472912 is about 420.7260909581.

The spelling of 74472912 in words is "seventy-four million, four hundred seventy-two thousand, nine hundred twelve".