266486 has 8 divisors (see below), whose sum is σ = 436104. Its totient is φ = 121120.

The previous prime is 266479. The next prime is 266489. The reversal of 266486 is 684662.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266489) by changing a digit.

266486 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 3 ways as a sum of consecutive naturals, for example, 6035 + ... + 6078.

It is an arithmetic number, because the mean of its divisors is an integer number (54513).

2²⁶⁶⁴⁸⁶ is an apocalyptic number.

266486 is a deficient number, since it is larger than the sum of its proper divisors (169618).

266486 is a wasteful number, since it uses less digits than its factorization.

266486 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12126.

The product of its digits is 13824, while the sum is 32.

The square root of 266486 is about 516.2228201078. Note that the first 3 decimals coincide. The cubic root of 266486 is about 64.3514197107.

The spelling of 266486 in words is "two hundred sixty-six thousand, four hundred eighty-six".