204266 has 8 divisors (see below), whose sum is σ = 309540. Its totient is φ = 101088.

The previous prime is 204251. The next prime is 204299. The reversal of 204266 is 662402.

It can be written as a sum of positive squares in 2 ways, for example, as 198025 + 6241 = 445^2 + 79^2 .

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

It is an Ulam number.

It is a Curzon number.

It is an unprimeable number.

204266 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 (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251 + ... + 686.

2²⁰⁴²⁶⁶ is an apocalyptic number.

204266 is a deficient number, since it is larger than the sum of its proper divisors (105274).

204266 is a wasteful number, since it uses less digits than its factorization.

204266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1048.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 204266 is about 451.9579626470. The cubic root of 204266 is about 58.8932283236.

Adding to 204266 its reverse (662402), we get a palindrome (866668).

The spelling of 204266 in words is "two hundred four thousand, two hundred sixty-six".