266608 has 20 divisors (see below), whose sum is σ = 544360. Its totient is φ = 126144.

The previous prime is 266603. The next prime is 266633. The reversal of 266608 is 806662.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 135 + ... + 742.

It is an arithmetic number, because the mean of its divisors is an integer number (27218).

2²⁶⁶⁶⁰⁸ is an apocalyptic number.

It is an amenable number.

266608 is an abundant number, since it is smaller than the sum of its proper divisors (277752).

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

266608 is a wasteful number, since it uses less digits than its factorization.

266608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 898 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 266608 is about 516.3409726140. The cubic root of 266608 is about 64.3612384572.

The spelling of 266608 in words is "two hundred sixty-six thousand, six hundred eight".