74384790 has 16 divisors (see below), whose sum is σ = 178523568. Its totient is φ = 19835936.

The previous prime is 74384777. The next prime is 74384833. The reversal of 74384790 is 9748347.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1239717 + ... + 1239776.

It is an arithmetic number, because the mean of its divisors is an integer number (11157723).

Almost surely, 2^74384790 is an apocalyptic number.

74384790 is an abundant number, since it is smaller than the sum of its proper divisors (104138778).

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

74384790 is a wasteful number, since it uses less digits than its factorization.

74384790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2479503.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 74384790 is about 8624.6617324971. The cubic root of 74384790 is about 420.5600804512.

The spelling of 74384790 in words is "seventy-four million, three hundred eighty-four thousand, seven hundred ninety".