268186 has 4 divisors (see below), whose sum is σ = 402282. Its totient is φ = 134092.

The previous prime is 268171. The next prime is 268189. The reversal of 268186 is 681862.

268186 is nontrivially palindromic in base 7.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 681862 = 2 ⋅340931.

It can be written as a sum of positive squares in only one way, i.e., 189225 + 78961 = 435^2 + 281^2 .

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67045 + ... + 67048.

2²⁶⁸¹⁸⁶ is an apocalyptic number.

268186 is a deficient number, since it is larger than the sum of its proper divisors (134096).

268186 is a wasteful number, since it uses less digits than its factorization.

268186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134095.

The product of its digits is 4608, while the sum is 31.

The square root of 268186 is about 517.8667782355. The cubic root of 268186 is about 64.4879692322.

It can be divided in two parts, 268 and 186, that added together give a palindrome (454).

The spelling of 268186 in words is "two hundred sixty-eight thousand, one hundred eighty-six".