74578768 has 40 divisors (see below), whose sum is σ = 158695200. Its totient is φ = 33671040.

The previous prime is 74578753. The next prime is 74578787. The reversal of 74578768 is 86787547.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26283 + ... + 28981.

It is an arithmetic number, because the mean of its divisors is an integer number (3967380).

Almost surely, 2^74578768 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 74578768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79347600).

74578768 is an abundant number, since it is smaller than the sum of its proper divisors (84116432).

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

74578768 is a wasteful number, since it uses less digits than its factorization.

74578768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2875 (or 2869 counting only the distinct ones).

The product of its digits is 2634240, while the sum is 52.

The square root of 74578768 is about 8635.8999531027. The cubic root of 74578768 is about 420.9253369889.

The spelling of 74578768 in words is "seventy-four million, five hundred seventy-eight thousand, seven hundred sixty-eight".