74716560 has 80 divisors (see below), whose sum is σ = 257364480. Its totient is φ = 19923840.

The previous prime is 74716553. The next prime is 74716567. The reversal of 74716560 is 6561747.

It is an interprime number because it is at equal distance from previous prime (74716553) and next prime (74716567).

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

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

It is not an unprimeable number, because it can be changed into a prime (74716567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15136 + ... + 19455.

It is an arithmetic number, because the mean of its divisors is an integer number (3217056).

Almost surely, 2^74716560 is an apocalyptic number.

It is an amenable number.

74716560 is an abundant number, since it is smaller than the sum of its proper divisors (182647920).

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

74716560 is a wasteful number, since it uses less digits than its factorization.

74716560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34613 (or 34601 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 36.

The square root of 74716560 is about 8643.8741314297. The cubic root of 74716560 is about 421.1844118873.

The spelling of 74716560 in words is "seventy-four million, seven hundred sixteen thousand, five hundred sixty".