266912 has 24 divisors (see below), whose sum is σ = 554400. Its totient is φ = 126144.

The previous prime is 266909. The next prime is 266921. The reversal of 266912 is 219662.

266912 = T₃ + T₄ + ... + T₁₁₆.

266912 is nontrivially palindromic in base 13.

It is an unprimeable 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 3 ways as a sum of consecutive naturals, for example, 389 + ... + 827.

It is an arithmetic number, because the mean of its divisors is an integer number (23100).

2²⁶⁶⁹¹² 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 266912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (277200).

266912 is an abundant number, since it is smaller than the sum of its proper divisors (287488).

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

266912 is a wasteful number, since it uses less digits than its factorization.

266912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468 (or 460 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

The square root of 266912 is about 516.6352678631. The cubic root of 266912 is about 64.3856918176.

The spelling of 266912 in words is "two hundred sixty-six thousand, nine hundred twelve".