266322 has 32 divisors (see below), whose sum is σ = 646272. Its totient is φ = 71424.

The previous prime is 266297. The next prime is 266333. The reversal of 266322 is 223662.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 266322.

It is an unprimeable number.

266322 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 528 + ... + 900.

It is an arithmetic number, because the mean of its divisors is an integer number (20196).

2²⁶⁶³²² is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 266322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (323136).

266322 is an abundant number, since it is smaller than the sum of its proper divisors (379950).

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

266322 is a wasteful number, since it uses less digits than its factorization.

266322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402.

The product of its digits is 864, while the sum is 21.

The square root of 266322 is about 516.0639495256. The cubic root of 266322 is about 64.3382160170.

Adding to 266322 its reverse (223662), we get a palindrome (489984).

The spelling of 266322 in words is "two hundred sixty-six thousand, three hundred twenty-two".