74080656 has 100 divisors (see below), whose sum is σ = 230956572. Its totient is φ = 22788864.

The previous prime is 74080649. The next prime is 74080661. The reversal of 74080656 is 65608047.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 22240656 + 51840000 = 4716^2 + 7200^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 74080656.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14650 + ... + 19046.

Almost surely, 2^74080656 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 74080656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115478286).

74080656 is an abundant number, since it is smaller than the sum of its proper divisors (156875916).

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

74080656 is a wasteful number, since it uses less digits than its factorization.

74080656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4430 (or 4415 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 74080656 is about 8607.0120250875. The cubic root of 74080656 is about 419.9861219904.

The spelling of 74080656 in words is "seventy-four million, eighty thousand, six hundred fifty-six".