74429992 has 64 divisors (see below), whose sum is σ = 180835200. Its totient is φ = 27889920.

The previous prime is 74429989. The next prime is 74430019. The reversal of 74429992 is 29992447.

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, 11142 + ... + 16522.

It is an arithmetic number, because the mean of its divisors is an integer number (2825550).

Almost surely, 2^74429992 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 74429992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90417600).

74429992 is an abundant number, since it is smaller than the sum of its proper divisors (106405208).

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

74429992 is a wasteful number, since it uses less digits than its factorization.

74429992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5426 (or 5422 counting only the distinct ones).

The product of its digits is 326592, while the sum is 46.

The square root of 74429992 is about 8627.2818430836. The cubic root of 74429992 is about 420.6452515700.

The spelling of 74429992 in words is "seventy-four million, four hundred twenty-nine thousand, nine hundred ninety-two".