266286 has 8 divisors (see below), whose sum is σ = 532584. Its totient is φ = 88760.

The previous prime is 266281. The next prime is 266291. The reversal of 266286 is 682662.

It is an interprime number because it is at equal distance from previous prime (266281) and next prime (266291).

It is a sphenic number, since it is the product of 3 distinct primes.

266286 is an admirable number.

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 266286.

It is not an unprimeable number, because it can be changed into a prime (266281) by changing a digit.

266286 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, 22185 + ... + 22196.

It is an arithmetic number, because the mean of its divisors is an integer number (66573).

2²⁶⁶²⁸⁶ is an apocalyptic number.

266286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

266286 is a wasteful number, since it uses less digits than its factorization.

266286 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44386.

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

The square root of 266286 is about 516.0290689486. The cubic root of 266286 is about 64.3353169198.

Subtracting from 266286 its sum of digits (30), we obtain a square (266256 = 516²).

The spelling of 266286 in words is "two hundred sixty-six thousand, two hundred eighty-six".