74431318 has 36 divisors (see below), whose sum is σ = 124862364. Its totient is φ = 33259200.

The previous prime is 74431261. The next prime is 74431327. The reversal of 74431318 is 81313447.

It is a self number, because there is not a number n which added to its sum of digits gives 74431318.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 568113 + ... + 568243.

It is an arithmetic number, because the mean of its divisors is an integer number (3468399).

Almost surely, 2^74431318 is an apocalyptic number.

74431318 is a deficient number, since it is larger than the sum of its proper divisors (50431046).

74431318 is a wasteful number, since it uses less digits than its factorization.

74431318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241 (or 187 counting only the distinct ones).

The product of its digits is 8064, while the sum is 31.

The square root of 74431318 is about 8627.3586919752. The cubic root of 74431318 is about 420.6477495429.

The spelling of 74431318 in words is "seventy-four million, four hundred thirty-one thousand, three hundred eighteen".