74104128 has 84 divisors (see below), whose sum is σ = 242763040. Its totient is φ = 21171456.

The previous prime is 74104127. The next prime is 74104141. The reversal of 74104128 is 82140147.

It is a tau number, because it is divible by the number of its divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74104127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5158 + ... + 13221.

Almost surely, 2^74104128 is an apocalyptic number.

It is an amenable number.

74104128 is an abundant number, since it is smaller than the sum of its proper divisors (168658912).

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

74104128 is a wasteful number, since it uses less digits than its factorization.

74104128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18404 (or 18391 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 74104128 is about 8608.3754564958. The cubic root of 74104128 is about 420.0304739793.

The spelling of 74104128 in words is "seventy-four million, one hundred four thousand, one hundred twenty-eight".