74047988 has 48 divisors (see below), whose sum is σ = 159030144. Its totient is φ = 29445120.

The previous prime is 74047969. The next prime is 74047993. The reversal of 74047988 is 88974047.

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, 33683 + ... + 35813.

It is an arithmetic number, because the mean of its divisors is an integer number (3313128).

Almost surely, 2^74047988 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 74047988, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79515072).

74047988 is an abundant number, since it is smaller than the sum of its proper divisors (84982156).

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

74047988 is a wasteful number, since it uses less digits than its factorization.

74047988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 74047988 is about 8605.1140608361. The cubic root of 74047988 is about 419.9243779193.

The spelling of 74047988 in words is "seventy-four million, forty-seven thousand, nine hundred eighty-eight".