317945460 has 96 divisors (see below), whose sum is σ = 1020079872. Its totient is φ = 72483840.

The previous prime is 317945443. The next prime is 317945461. The reversal of 317945460 is 64549713.

It is a super-2 number, since 2×317945460² = 202178631069223200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317945461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 218094 + ... + 219546.

It is an arithmetic number, because the mean of its divisors is an integer number (10625832).

Almost surely, 2^317945460 is an apocalyptic number.

317945460 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 317945460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (510039936).

317945460 is an abundant number, since it is smaller than the sum of its proper divisors (702134412).

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

317945460 is a wasteful number, since it uses less digits than its factorization.

317945460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993 (or 1991 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 317945460 is about 17831.0252088880. The cubic root of 317945460 is about 682.5233954599.

The spelling of 317945460 in words is "three hundred seventeen million, nine hundred forty-five thousand, four hundred sixty".