74392992 has 96 divisors (see below), whose sum is σ = 219864960. Its totient is φ = 24774336.

The previous prime is 74392987. The next prime is 74393009. The reversal of 74392992 is 29929347.

It is a tau number, because it is divible by the number of its divisors (96).

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, 69453 + ... + 70515.

It is an arithmetic number, because the mean of its divisors is an integer number (2290260).

Almost surely, 2^74392992 is an apocalyptic number.

74392992 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 74392992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (109932480).

74392992 is an abundant number, since it is smaller than the sum of its proper divisors (145471968).

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

74392992 is an equidigital number, since it uses as much as digits as its factorization.

74392992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094 (or 1068 counting only the distinct ones).

The product of its digits is 244944, while the sum is 45.

The square root of 74392992 is about 8625.1372162998. The cubic root of 74392992 is about 420.5755374956.

The spelling of 74392992 in words is "seventy-four million, three hundred ninety-two thousand, nine hundred ninety-two".