74772238 has 16 divisors (see below), whose sum is σ = 113304960. Its totient is φ = 37006200.

The previous prime is 74772209. The next prime is 74772251. The reversal of 74772238 is 83227747.

It is a self number, because there is not a number n which added to its sum of digits gives 74772238.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118183 + ... + 118813.

It is an arithmetic number, because the mean of its divisors is an integer number (7081560).

Almost surely, 2^74772238 is an apocalyptic number.

74772238 is a deficient number, since it is larger than the sum of its proper divisors (38532722).

74772238 is a wasteful number, since it uses less digits than its factorization.

74772238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1143.

The product of its digits is 131712, while the sum is 40.

The square root of 74772238 is about 8647.0941940053. The cubic root of 74772238 is about 421.2890066519.

The spelling of 74772238 in words is "seventy-four million, seven hundred seventy-two thousand, two hundred thirty-eight".