74090668 has 12 divisors (see below), whose sum is σ = 129945592. Its totient is φ = 36963360.

The previous prime is 74090629. The next prime is 74090669. The reversal of 74090668 is 86609047.

It is a self number, because there is not a number n which added to its sum of digits gives 74090668.

It is not an unprimeable number, because it can be changed into a prime (74090669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18438 + ... + 22093.

Almost surely, 2^74090668 is an apocalyptic number.

It is an amenable number.

74090668 is a deficient number, since it is larger than the sum of its proper divisors (55854924).

74090668 is a wasteful number, since it uses less digits than its factorization.

74090668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40992 (or 40990 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 74090668 is about 8607.5936242367. The cubic root of 74090668 is about 420.0050415117.

The spelling of 74090668 in words is "seventy-four million, ninety thousand, six hundred sixty-eight".