318340874 has 4 divisors (see below), whose sum is σ = 477511314. Its totient is φ = 159170436.

The previous prime is 318340871. The next prime is 318340879. The reversal of 318340874 is 478043813.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 478043813 = 13 ⋅36772601.

It can be written as a sum of positive squares in only one way, i.e., 315595225 + 2745649 = 17765^2 + 1657^2 .

It is not an unprimeable number, because it can be changed into a prime (318340871) by changing a digit.

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 as a sum of consecutive naturals, namely, 79585217 + ... + 79585220.

Almost surely, 2^318340874 is an apocalyptic number.

318340874 is a deficient number, since it is larger than the sum of its proper divisors (159170440).

318340874 is a wasteful number, since it uses less digits than its factorization.

318340874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159170439.

The product of its (nonzero) digits is 64512, while the sum is 38.

The square root of 318340874 is about 17842.1095725814. The cubic root of 318340874 is about 682.8062191286.

The spelling of 318340874 in words is "three hundred eighteen million, three hundred forty thousand, eight hundred seventy-four".