266422 has 8 divisors (see below), whose sum is σ = 430416. Its totient is φ = 122952.

The previous prime is 266417. The next prime is 266447. The reversal of 266422 is 224662.

It is a happy number.

266422 is nontrivially palindromic in base 7.

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

It is a junction number, because it is equal to n+sod(n) for n = 266393 and 266402.

It is a congruent number.

It is an unprimeable number.

266422 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 (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5098 + ... + 5149.

It is an arithmetic number, because the mean of its divisors is an integer number (53802).

2²⁶⁶⁴²² is an apocalyptic number.

266422 is a deficient number, since it is larger than the sum of its proper divisors (163994).

266422 is a wasteful number, since it uses less digits than its factorization.

266422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10262.

The product of its digits is 1152, while the sum is 22.

The square root of 266422 is about 516.1608276497. The cubic root of 266422 is about 64.3462676944.

The spelling of 266422 in words is "two hundred sixty-six thousand, four hundred twenty-two".