268356 has 48 divisors (see below), whose sum is σ = 725760. Its totient is φ = 76320.

The previous prime is 268343. The next prime is 268403. The reversal of 268356 is 653862.

Its product of digits (8640) is a multiple of the sum of its prime factors (144).

It is an unprimeable number.

268356 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 (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2455 + ... + 2561.

It is an arithmetic number, because the mean of its divisors is an integer number (15120).

2²⁶⁸³⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 268356, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (362880).

268356 is an abundant number, since it is smaller than the sum of its proper divisors (457404).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

268356 is a wasteful number, since it uses less digits than its factorization.

268356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144 (or 142 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 268356 is about 518.0308871100. The cubic root of 268356 is about 64.5015924131.

The spelling of 268356 in words is "two hundred sixty-eight thousand, three hundred fifty-six".