204722 has 12 divisors (see below), whose sum is σ = 357390. Its totient is φ = 87696.

The previous prime is 204719. The next prime is 204733. The reversal of 204722 is 227402.

It can be written as a sum of positive squares in only one way, i.e., 137641 + 67081 = 371^2 + 259^2 .

It is a super-2 number, since 2×204722² = 83822194568, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 204722.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 204722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 947 + ... + 1142.

2²⁰⁴⁷²² is an apocalyptic number.

204722 is a deficient number, since it is larger than the sum of its proper divisors (152668).

204722 is a wasteful number, since it uses less digits than its factorization.

204722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105 (or 2098 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 17.

The square root of 204722 is about 452.4621531134. The cubic root of 204722 is about 58.9370198390.

The spelling of 204722 in words is "two hundred four thousand, seven hundred twenty-two", and thus it is an iban number.