268188 has 12 divisors (see below), whose sum is σ = 625800. Its totient is φ = 89392.

The previous prime is 268171. The next prime is 268189. The reversal of 268188 is 881862.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268189) by changing a digit.

268188 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, 11163 + ... + 11186.

It is an arithmetic number, because the mean of its divisors is an integer number (52150).

2²⁶⁸¹⁸⁸ is an apocalyptic number.

It is an amenable number.

268188 is an abundant number, since it is smaller than the sum of its proper divisors (357612).

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

268188 is a wasteful number, since it uses less digits than its factorization.

268188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22356 (or 22354 counting only the distinct ones).

The product of its digits is 6144, while the sum is 33.

The square root of 268188 is about 517.8687092304. The cubic root of 268188 is about 64.4881295384.

The spelling of 268188 in words is "two hundred sixty-eight thousand, one hundred eighty-eight".