266992 has 40 divisors (see below), whose sum is σ = 593712. Its totient is φ = 115200.

The previous prime is 266983. The next prime is 266993. The reversal of 266992 is 299662.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6492 + ... + 6532.

2²⁶⁶⁹⁹² is an apocalyptic number.

266992 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296856).

266992 is an abundant number, since it is smaller than the sum of its proper divisors (326720).

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

266992 is a wasteful number, since it uses less digits than its factorization.

266992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97 (or 91 counting only the distinct ones).

The product of its digits is 11664, while the sum is 34.

The square root of 266992 is about 516.7126861226. The cubic root of 266992 is about 64.3921238262.

The spelling of 266992 in words is "two hundred sixty-six thousand, nine hundred ninety-two".