266994 has 48 divisors (see below), whose sum is σ = 716352. Its totient is φ = 69984.

The previous prime is 266993. The next prime is 266999. The reversal of 266994 is 499662.

It is an Ulam number.

It is a Curzon number.

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

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1557 + ... + 1719.

It is an arithmetic number, because the mean of its divisors is an integer number (14924).

2²⁶⁶⁹⁹⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266994, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (358176).

266994 is an abundant number, since it is smaller than the sum of its proper divisors (449358).

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

266994 is a wasteful number, since it uses less digits than its factorization.

266994 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191 (or 188 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 266994 is about 516.7146214304. The cubic root of 266994 is about 64.3922846100.

The spelling of 266994 in words is "two hundred sixty-six thousand, nine hundred ninety-four".