74878412 has 24 divisors (see below), whose sum is σ = 151656960. Its totient is φ = 31683600.

The previous prime is 74878393. The next prime is 74878439. The reversal of 74878412 is 21487847.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 74878412.

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, 14714 + ... + 19137.

It is an arithmetic number, because the mean of its divisors is an integer number (6319040).

Almost surely, 2^74878412 is an apocalyptic number.

It is an amenable number.

74878412 is an abundant number, since it is smaller than the sum of its proper divisors (76778548).

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

74878412 is a wasteful number, since it uses less digits than its factorization.

74878412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33941 (or 33939 counting only the distinct ones).

The product of its digits is 100352, while the sum is 41.

The square root of 74878412 is about 8653.2313039696. The cubic root of 74878412 is about 421.4883176316.

The spelling of 74878412 in words is "seventy-four million, eight hundred seventy-eight thousand, four hundred twelve".