318340869 has 16 divisors (see below), whose sum is σ = 529190400. Its totient is φ = 165371760.

The previous prime is 318340837. The next prime is 318340871. The reversal of 318340869 is 968043813.

It is a happy number.

It is not a de Polignac number, because 318340869 - 2⁵ = 318340837 is a prime.

It is a super-2 number, since 2×318340869² = 202681817751350322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 318340869.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318340819) 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 in 15 ways as a sum of consecutive naturals, for example, 688819 + ... + 689280.

It is an arithmetic number, because the mean of its divisors is an integer number (33074400).

Almost surely, 2^318340869 is an apocalyptic number.

It is an amenable number.

318340869 is a deficient number, since it is larger than the sum of its proper divisors (210849531).

318340869 is a wasteful number, since it uses less digits than its factorization.

318340869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378120.

The product of its (nonzero) digits is 124416, while the sum is 42.

The square root of 318340869 is about 17842.1094324634. The cubic root of 318340869 is about 682.8062155538.

The spelling of 318340869 in words is "three hundred eighteen million, three hundred forty thousand, eight hundred sixty-nine".