266396 has 24 divisors (see below), whose sum is σ = 517440. Its totient is φ = 119232.

The previous prime is 266381. The next prime is 266401. The reversal of 266396 is 693662.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2390 + ... + 2498.

It is an arithmetic number, because the mean of its divisors is an integer number (21560).

2²⁶⁶³⁹⁶ is an apocalyptic number.

266396 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

266396 is a deficient number, since it is larger than the sum of its proper divisors (251044).

266396 is a wasteful number, since it uses less digits than its factorization.

266396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 171 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

The square root of 266396 is about 516.1356410867. The cubic root of 266396 is about 64.3441744522.

The spelling of 266396 in words is "two hundred sixty-six thousand, three hundred ninety-six".