317866420 has 12 divisors (see below), whose sum is σ = 667519524. Its totient is φ = 127146560.

The previous prime is 317866411. The next prime is 317866421. The reversal of 317866420 is 24668713.

It can be written as a sum of positive squares in 2 ways, for example, as 101364624 + 216501796 = 10068^2 + 14714^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 317866420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317866421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7946641 + ... + 7946680.

It is an arithmetic number, because the mean of its divisors is an integer number (55626627).

Almost surely, 2^317866420 is an apocalyptic number.

It is an amenable number.

317866420 is an abundant number, since it is smaller than the sum of its proper divisors (349653104).

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

317866420 is a wasteful number, since it uses less digits than its factorization.

317866420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15893330 (or 15893328 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 317866420 is about 17828.8087095016. The cubic root of 317866420 is about 682.4668332221.

The spelling of 317866420 in words is "three hundred seventeen million, eight hundred sixty-six thousand, four hundred twenty".