266694 has 8 divisors (see below), whose sum is σ = 533400. Its totient is φ = 88896.

The previous prime is 266689. The next prime is 266701. The reversal of 266694 is 496662.

It is a sphenic number, since it is the product of 3 distinct primes.

266694 is an admirable number.

It is a super-2 number, since 2×266694² = 142251379272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 22219 + ... + 22230.

It is an arithmetic number, because the mean of its divisors is an integer number (66675).

2²⁶⁶⁶⁹⁴ is an apocalyptic number.

266694 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

266694 is a wasteful number, since it uses less digits than its factorization.

266694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44454.

The product of its digits is 15552, while the sum is 33.

The square root of 266694 is about 516.4242442024. The cubic root of 266694 is about 64.3681580688.

The spelling of 266694 in words is "two hundred sixty-six thousand, six hundred ninety-four".