266268 has 12 divisors (see below), whose sum is σ = 621320. Its totient is φ = 88752.

The previous prime is 266261. The next prime is 266269. The reversal of 266268 is 862662.

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

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 266268.

It is not an unprimeable number, because it can be changed into a prime (266261) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 11083 + ... + 11106.

266268 is a Friedman number, since it can be written as (86*6)^2+6*2, using all its digits and the basic arithmetic operations.

2²⁶⁶²⁶⁸ is an apocalyptic number.

It is an amenable number.

266268 is an abundant number, since it is smaller than the sum of its proper divisors (355052).

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

266268 is a wasteful number, since it uses less digits than its factorization.

266268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22196 (or 22194 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 266268 is about 516.0116277760. The cubic root of 266268 is about 64.3338672731. Note that the first 3 decimals are identical.

The spelling of 266268 in words is "two hundred sixty-six thousand, two hundred sixty-eight".