74806438 has 24 divisors (see below), whose sum is σ = 132489432. Its totient is φ = 31578624.

The previous prime is 74806423. The next prime is 74806451. The reversal of 74806438 is 83460847.

It is a self number, because there is not a number n which added to its sum of digits gives 74806438.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 870 + ... + 12262.

It is an arithmetic number, because the mean of its divisors is an integer number (5520393).

Almost surely, 2^74806438 is an apocalyptic number.

74806438 is a deficient number, since it is larger than the sum of its proper divisors (57682994).

74806438 is a wasteful number, since it uses less digits than its factorization.

74806438 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11476 (or 11469 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 40.

The square root of 74806438 is about 8649.0715108617. The cubic root of 74806438 is about 421.3532278490.

The spelling of 74806438 in words is "seventy-four million, eight hundred six thousand, four hundred thirty-eight".