74642164 has 12 divisors (see below), whose sum is σ = 132092100. Its totient is φ = 36901568.

The previous prime is 74642147. The next prime is 74642207. The reversal of 74642164 is 46124647.

It can be written as a sum of positive squares in 2 ways, for example, as 5253264 + 69388900 = 2292^2 + 8330^2 .

It is a congruent 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, 104479 + ... + 105190.

It is an arithmetic number, because the mean of its divisors is an integer number (11007675).

Almost surely, 2^74642164 is an apocalyptic number.

It is an amenable number.

74642164 is a deficient number, since it is larger than the sum of its proper divisors (57449936).

74642164 is a wasteful number, since it uses less digits than its factorization.

74642164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209762 (or 209760 counting only the distinct ones).

The product of its digits is 32256, while the sum is 34.

The square root of 74642164 is about 8639.5696652090. The cubic root of 74642164 is about 421.0445730026.

The spelling of 74642164 in words is "seventy-four million, six hundred forty-two thousand, one hundred sixty-four".