74406642 has 8 divisors (see below), whose sum is σ = 148813296. Its totient is φ = 24802212.

The previous prime is 74406613. The next prime is 74406653. The reversal of 74406642 is 24660447.

It is a sphenic number, since it is the product of 3 distinct primes.

74406642 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6200548 + ... + 6200559.

It is an arithmetic number, because the mean of its divisors is an integer number (18601662).

Almost surely, 2^74406642 is an apocalyptic number.

74406642 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

74406642 is a wasteful number, since it uses less digits than its factorization.

74406642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12401112.

The product of its (nonzero) digits is 32256, while the sum is 33.

The square root of 74406642 is about 8625.9284717646. The cubic root of 74406642 is about 420.6012590268.

The spelling of 74406642 in words is "seventy-four million, four hundred six thousand, six hundred forty-two".