74372560 has 40 divisors (see below), whose sum is σ = 173415240. Its totient is φ = 29663232.

The previous prime is 74372539. The next prime is 74372567. The reversal of 74372560 is 6527347.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 37503376 + 36869184 = 6124^2 + 6072^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74372567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31584 + ... + 33856.

It is an arithmetic number, because the mean of its divisors is an integer number (4335381).

Almost surely, 2^74372560 is an apocalyptic number.

It is an amenable number.

74372560 is an abundant number, since it is smaller than the sum of its proper divisors (99042680).

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

74372560 is a wasteful number, since it uses less digits than its factorization.

74372560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2695 (or 2689 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 74372560 is about 8623.9526900372. The cubic root of 74372560 is about 420.5370303460.

The spelling of 74372560 in words is "seventy-four million, three hundred seventy-two thousand, five hundred sixty".