74428112 has 80 divisors (see below), whose sum is σ = 163918080. Its totient is φ = 32448000.

The previous prime is 74428063. The next prime is 74428129. The reversal of 74428112 is 21182447.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736862 + ... + 736962.

It is an arithmetic number, because the mean of its divisors is an integer number (2048976).

Almost surely, 2^74428112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 74428112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81959040).

74428112 is an abundant number, since it is smaller than the sum of its proper divisors (89489968).

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

74428112 is a wasteful number, since it uses less digits than its factorization.

74428112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252 (or 246 counting only the distinct ones).

The product of its digits is 3584, while the sum is 29.

The square root of 74428112 is about 8627.1728857141. The cubic root of 74428112 is about 420.6417098986.

The spelling of 74428112 in words is "seventy-four million, four hundred twenty-eight thousand, one hundred twelve".