268868 has 6 divisors (see below), whose sum is σ = 470526. Its totient is φ = 134432.

The previous prime is 268861. The next prime is 268883. The reversal of 268868 is 868862.

It can be written as a sum of positive squares in only one way, i.e., 262144 + 6724 = 512^2 + 82^2 .

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 268868.

It is not an unprimeable number, because it can be changed into a prime (268861) by changing a digit.

268868 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 as a sum of consecutive naturals, namely, 33605 + ... + 33612.

It is an arithmetic number, because the mean of its divisors is an integer number (78421).

268868 is a Friedman number, since it can be written as 82^(8-6)+8^6, using all its digits and the basic arithmetic operations.

2²⁶⁸⁸⁶⁸ is an apocalyptic number.

It is an amenable number.

268868 is a deficient number, since it is larger than the sum of its proper divisors (201658).

268868 is a wasteful number, since it uses less digits than its factorization.

268868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67221 (or 67219 counting only the distinct ones).

The product of its digits is 36864, while the sum is 38.

The square root of 268868 is about 518.5248306494. The cubic root of 268868 is about 64.5425875026.

The spelling of 268868 in words is "two hundred sixty-eight thousand, eight hundred sixty-eight".