317868768 has 144 divisors (see below), whose sum is σ = 1068893280. Its totient is φ = 87671808.

The previous prime is 317868767. The next prime is 317868773. The reversal of 317868768 is 867868713.

It is a tau number, because it is divible by the number of its divisors (144).

It is a nude number because it is divisible by every one of its digits.

It is a zygodrome in base 5.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317868767) 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 23 ways as a sum of consecutive naturals, for example, 55746 + ... + 61182.

It is an arithmetic number, because the mean of its divisors is an integer number (7422870).

Almost surely, 2^317868768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317868768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (534446640).

317868768 is an abundant number, since it is smaller than the sum of its proper divisors (751024512).

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

317868768 is a wasteful number, since it uses less digits than its factorization.

317868768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5489 (or 5478 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 317868768 is about 17828.8745578626. The cubic root of 317868768 is about 682.4685136221.

Subtracting 317868768 from its reverse (867868713), we obtain a palindrome (549999945).

The spelling of 317868768 in words is "three hundred seventeen million, eight hundred sixty-eight thousand, seven hundred sixty-eight".