74316564 has 72 divisors (see below), whose sum is σ = 217468160. Its totient is φ = 20958912.

The previous prime is 74316551. The next prime is 74316587. The reversal of 74316564 is 46561347.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18042 + ... + 21774.

Almost surely, 2^74316564 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 74316564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (108734080).

74316564 is an abundant number, since it is smaller than the sum of its proper divisors (143151596).

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

74316564 is a wasteful number, since it uses less digits than its factorization.

74316564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3829 (or 3824 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 74316564 is about 8620.7055395716. The cubic root of 74316564 is about 420.4314613746.

The spelling of 74316564 in words is "seventy-four million, three hundred sixteen thousand, five hundred sixty-four".