266988 has 24 divisors (see below), whose sum is σ = 656320. Its totient is φ = 84240.

The previous prime is 266983. The next prime is 266993. The reversal of 266988 is 889662.

It is an interprime number because it is at equal distance from previous prime (266983) and next prime (266993).

It is not an unprimeable number, because it can be changed into a prime (266983) by changing a digit.

266988 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 7 ways as a sum of consecutive naturals, for example, 358 + ... + 813.

2²⁶⁶⁹⁸⁸ is an apocalyptic number.

It is an amenable number.

266988 is an abundant number, since it is smaller than the sum of its proper divisors (389332).

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

266988 is a wasteful number, since it uses less digits than its factorization.

266988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1197 (or 1195 counting only the distinct ones).

The product of its digits is 41472, while the sum is 39.

The square root of 266988 is about 516.7088154851. The cubic root of 266988 is about 64.3918022563.

The spelling of 266988 in words is "two hundred sixty-six thousand, nine hundred eighty-eight".