268918 has 8 divisors (see below), whose sum is σ = 434448. Its totient is φ = 124104.

The previous prime is 268913. The next prime is 268921. The reversal of 268918 is 819862.

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

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268913) by changing a digit.

268918 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5146 + ... + 5197.

It is an arithmetic number, because the mean of its divisors is an integer number (54306).

2²⁶⁸⁹¹⁸ is an apocalyptic number.

268918 is a deficient number, since it is larger than the sum of its proper divisors (165530).

268918 is a wasteful number, since it uses less digits than its factorization.

268918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10358.

The product of its digits is 6912, while the sum is 34.

The square root of 268918 is about 518.5730421069. The cubic root of 268918 is about 64.5465881390.

The spelling of 268918 in words is "two hundred sixty-eight thousand, nine hundred eighteen".