317409990 has 32 divisors (see below), whose sum is σ = 762259680. Its totient is φ = 84589824.

The previous prime is 317409977. The next prime is 317409997. The reversal of 317409990 is 99904713.

317409990 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (317409997) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79932 + ... + 83808.

It is an arithmetic number, because the mean of its divisors is an integer number (23820615).

Almost surely, 2^317409990 is an apocalyptic number.

317409990 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

317409990 is an abundant number, since it is smaller than the sum of its proper divisors (444849690).

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

317409990 is a wasteful number, since it uses less digits than its factorization.

317409990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6616.

The product of its (nonzero) digits is 61236, while the sum is 42.

The square root of 317409990 is about 17816.0037606642. The cubic root of 317409990 is about 682.1400213588.

The spelling of 317409990 in words is "three hundred seventeen million, four hundred nine thousand, nine hundred ninety".