74689138 has 8 divisors (see below), whose sum is σ = 112394880. Its totient is φ = 37224180.

The previous prime is 74689099. The next prime is 74689163. The reversal of 74689138 is 83198647.

It is a happy number.

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

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, 59418 + ... + 60661.

It is an arithmetic number, because the mean of its divisors is an integer number (14049360).

Almost surely, 2^74689138 is an apocalyptic number.

74689138 is a deficient number, since it is larger than the sum of its proper divisors (37705742).

74689138 is a wasteful number, since it uses less digits than its factorization.

74689138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120392.

The product of its digits is 290304, while the sum is 46.

The square root of 74689138 is about 8642.2877758149. The cubic root of 74689138 is about 421.1328787680.

The spelling of 74689138 in words is "seventy-four million, six hundred eighty-nine thousand, one hundred thirty-eight".