74306656 has 48 divisors (see below), whose sum is σ = 152028576. Its totient is φ = 35721216.

The previous prime is 74306641. The next prime is 74306669. The reversal of 74306656 is 65660347.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114525 + ... + 115171.

It is an arithmetic number, because the mean of its divisors is an integer number (3167262).

Almost surely, 2^74306656 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 74306656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76014288).

74306656 is an abundant number, since it is smaller than the sum of its proper divisors (77721920).

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

74306656 is a wasteful number, since it uses less digits than its factorization.

74306656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 791 (or 783 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 74306656 is about 8620.1308574754. The cubic root of 74306656 is about 420.4127763519.

The spelling of 74306656 in words is "seventy-four million, three hundred six thousand, six hundred fifty-six".