318773980 has 24 divisors (see below), whose sum is σ = 765057888. Its totient is φ = 109293888.

The previous prime is 318773977. The next prime is 318774011. The reversal of 318773980 is 89377813.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 318773980.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138339 + ... + 1138618.

It is an arithmetic number, because the mean of its divisors is an integer number (31877412).

Almost surely, 2^318773980 is an apocalyptic number.

It is an amenable number.

318773980 is an abundant number, since it is smaller than the sum of its proper divisors (446283908).

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

318773980 is a wasteful number, since it uses less digits than its factorization.

318773980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276973 (or 2276971 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 318773980 is about 17854.2426330550. The cubic root of 318773980 is about 683.1157337426.

The spelling of 318773980 in words is "three hundred eighteen million, seven hundred seventy-three thousand, nine hundred eighty".