74504560 has 80 divisors (see below), whose sum is σ = 189362880. Its totient is φ = 27095040.

The previous prime is 74504543. The next prime is 74504579. The reversal of 74504560 is 6540547.

It is a happy number.

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

It is a congruent number.

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, 73336 + ... + 74344.

It is an arithmetic number, because the mean of its divisors is an integer number (2367036).

Almost surely, 2^74504560 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 74504560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94681440).

74504560 is an abundant number, since it is smaller than the sum of its proper divisors (114858320).

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

74504560 is a wasteful number, since it uses less digits than its factorization.

74504560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106 (or 1100 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 74504560 is about 8631.6024004816. The cubic root of 74504560 is about 420.7856797548.

The spelling of 74504560 in words is "seventy-four million, five hundred four thousand, five hundred sixty".