318992241 has 8 divisors (see below), whose sum is σ = 432295744. Its totient is φ = 209175120.

The previous prime is 318992209. The next prime is 318992249. The reversal of 318992241 is 142299813.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 318992241 - 2⁵ = 318992209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 318992241.

It is not an unprimeable number, because it can be changed into a prime (318992249) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 871381 + ... + 871746.

It is an arithmetic number, because the mean of its divisors is an integer number (54036968).

Almost surely, 2^318992241 is an apocalyptic number.

It is an amenable number.

318992241 is a deficient number, since it is larger than the sum of its proper divisors (113303503).

318992241 is a wasteful number, since it uses less digits than its factorization.

318992241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1743191.

The product of its digits is 31104, while the sum is 39.

The square root of 318992241 is about 17860.3538878713. The cubic root of 318992241 is about 683.2716054228.

The spelling of 318992241 in words is "three hundred eighteen million, nine hundred ninety-two thousand, two hundred forty-one".