317948790 has 64 divisors (see below), whose sum is σ = 814302720. Its totient is φ = 79173120.

The previous prime is 317948777. The next prime is 317948797. The reversal of 317948790 is 97849713.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317948797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64431 + ... + 69189.

It is an arithmetic number, because the mean of its divisors is an integer number (12723480).

Almost surely, 2^317948790 is an apocalyptic number.

317948790 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 317948790, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (407151360).

317948790 is an abundant number, since it is smaller than the sum of its proper divisors (496353930).

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

317948790 is a wasteful number, since it uses less digits than its factorization.

317948790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4917.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 317948790 is about 17831.1185852150. The cubic root of 317948790 is about 682.5257782532.

The spelling of 317948790 in words is "three hundred seventeen million, nine hundred forty-eight thousand, seven hundred ninety".