74609568 has 108 divisors (see below), whose sum is σ = 233321634. Its totient is φ = 22598400.

The previous prime is 74609543. The next prime is 74609581. The reversal of 74609568 is 86590647.

It can be written as a sum of positive squares in only one way, i.e., 45319824 + 29289744 = 6732^2 + 5412^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33778 + ... + 35918.

Almost surely, 2^74609568 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 74609568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (116660817).

74609568 is an abundant number, since it is smaller than the sum of its proper divisors (158712066).

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

74609568 is a wasteful number, since it uses less digits than its factorization.

74609568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2179 (or 2157 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 74609568 is about 8637.6830226630. The cubic root of 74609568 is about 420.9832744619.

The spelling of 74609568 in words is "seventy-four million, six hundred nine thousand, five hundred sixty-eight".