266822 has 8 divisors (see below), whose sum is σ = 405000. Its totient is φ = 131824.

The previous prime is 266821. The next prime is 266837. The reversal of 266822 is 228662.

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 = 266791 and 266800.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (266821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 572 + ... + 927.

It is an arithmetic number, because the mean of its divisors is an integer number (50625).

2²⁶⁶⁸²² is an apocalyptic number.

266822 is a deficient number, since it is larger than the sum of its proper divisors (138178).

266822 is a wasteful number, since it uses less digits than its factorization.

266822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590.

The product of its digits is 2304, while the sum is 26.

The square root of 266822 is about 516.5481584519. The cubic root of 266822 is about 64.3784542716.

The spelling of 266822 in words is "two hundred sixty-six thousand, eight hundred twenty-two".