268682 has 4 divisors (see below), whose sum is σ = 403026. Its totient is φ = 134340.

The previous prime is 268661. The next prime is 268693. The reversal of 268682 is 286862.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 201601 + 67081 = 449^2 + 259^2 .

It is an Ulam number.

It is an unprimeable number.

268682 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67169 + ... + 67172.

2²⁶⁸⁶⁸² is an apocalyptic number.

268682 is a deficient number, since it is larger than the sum of its proper divisors (134344).

268682 is a wasteful number, since it uses less digits than its factorization.

268682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134343.

The product of its digits is 9216, while the sum is 32.

The square root of 268682 is about 518.3454446602. The cubic root of 268682 is about 64.5277007792.

The spelling of 268682 in words is "two hundred sixty-eight thousand, six hundred eighty-two".