74656560 has 80 divisors (see below), whose sum is σ = 252483840. Its totient is φ = 18097920.

The previous prime is 74656523. The next prime is 74656579. The reversal of 74656560 is 6565647.

It is a tau number, because it is divible by the number of its divisors (80).

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, 11500 + ... + 16779.

It is an arithmetic number, because the mean of its divisors is an integer number (3156048).

Almost surely, 2^74656560 is an apocalyptic number.

It is an amenable number.

74656560 is an abundant number, since it is smaller than the sum of its proper divisors (177827280).

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

74656560 is a wasteful number, since it uses less digits than its factorization.

74656560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28306 (or 28300 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 39.

The square root of 74656560 is about 8640.4027683899. The cubic root of 74656560 is about 421.0716397778.

The spelling of 74656560 in words is "seventy-four million, six hundred fifty-six thousand, five hundred sixty".