318671868 has 48 divisors (see below), whose sum is σ = 788858784. Its totient is φ = 99778560.

The previous prime is 318671863. The next prime is 318671911. The reversal of 318671868 is 868176813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (318671863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129546 + ... + 131982.

It is an arithmetic number, because the mean of its divisors is an integer number (16434558).

Almost surely, 2^318671868 is an apocalyptic number.

It is an amenable number.

318671868 is an abundant number, since it is smaller than the sum of its proper divisors (470186916).

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

318671868 is a wasteful number, since it uses less digits than its factorization.

318671868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3102 (or 3100 counting only the distinct ones).

The product of its digits is 387072, while the sum is 48.

The square root of 318671868 is about 17851.3828035814. The cubic root of 318671868 is about 683.0427857527.

The spelling of 318671868 in words is "three hundred eighteen million, six hundred seventy-one thousand, eight hundred sixty-eight".