74689434 has 12 divisors (see below), whose sum is σ = 161827146. Its totient is φ = 24896472.

The previous prime is 74689429. The next prime is 74689451. The reversal of 74689434 is 43498647.

It can be written as a sum of positive squares in only one way, i.e., 73874025 + 815409 = 8595^2 + 903^2 .

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 74689434.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2074689 + ... + 2074724.

Almost surely, 2^74689434 is an apocalyptic number.

74689434 is an abundant number, since it is smaller than the sum of its proper divisors (87137712).

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

74689434 is a wasteful number, since it uses less digits than its factorization.

74689434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4149421 (or 4149418 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 74689434 is about 8642.3049008930. The cubic root of 74689434 is about 421.1334350969.

The spelling of 74689434 in words is "seventy-four million, six hundred eighty-nine thousand, four hundred thirty-four".