206622 has 24 divisors (see below), whose sum is σ = 482664. Its totient is φ = 63504.

The previous prime is 206603. The next prime is 206623. The reversal of 206622 is 226602.

206622 is a `hidden beast` number, since 2 + 0 + 662 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 206595 and 206604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206623) by changing a digit.

206622 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 11 ways as a sum of consecutive naturals, for example, 208 + ... + 675.

It is an arithmetic number, because the mean of its divisors is an integer number (20111).

2²⁰⁶⁶²² is an apocalyptic number.

206622 is an abundant number, since it is smaller than the sum of its proper divisors (276042).

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

206622 is a wasteful number, since it uses less digits than its factorization.

206622 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 901 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 206622 is about 454.5569271279. The cubic root of 206622 is about 59.1187877774.

It can be divided in two parts, 206 and 622, that added together give a palindrome (828).

The spelling of 206622 in words is "two hundred six thousand, six hundred twenty-two".