268985 has 8 divisors (see below), whose sum is σ = 336960. Its totient is φ = 205744.

The previous prime is 268979. The next prime is 268993. The reversal of 268985 is 589862.

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

It is a cyclic number.

It is not a de Polignac number, because 268985 - 2⁴ = 268969 is a prime.

It is an Ulam number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055 + ... + 1284.

It is an arithmetic number, because the mean of its divisors is an integer number (42120).

2²⁶⁸⁹⁸⁵ is an apocalyptic number.

It is an amenable number.

268985 is a deficient number, since it is larger than the sum of its proper divisors (67975).

268985 is a wasteful number, since it uses less digits than its factorization.

268985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2367.

The product of its digits is 34560, while the sum is 38.

The square root of 268985 is about 518.6376384336. The cubic root of 268985 is about 64.5519482144.

The spelling of 268985 in words is "two hundred sixty-eight thousand, nine hundred eighty-five".