220368317 has 12 divisors (see below), whose sum is σ = 243486684. Its totient is φ = 198146880.

The previous prime is 220368307. The next prime is 220368341. The reversal of 220368317 is 713863022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 20259001 + 200109316 = 4501^2 + 14146^2 .

It is not a de Polignac number, because 220368317 - 2²⁰ = 219319741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220368307) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 342398 + ... + 343040.

It is an arithmetic number, because the mean of its divisors is an integer number (20290557).

Almost surely, 2^220368317 is an apocalyptic number.

It is an amenable number.

220368317 is a deficient number, since it is larger than the sum of its proper divisors (23118367).

220368317 is an frugal number, since it uses more digits than its factorization.

220368317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340 (or 697 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 220368317 is about 14844.8077454711. The cubic root of 220368317 is about 604.0177737339.

The spelling of 220368317 in words is "two hundred twenty million, three hundred sixty-eight thousand, three hundred seventeen".