204285 has 8 divisors (see below), whose sum is σ = 326880. Its totient is φ = 108944.

The previous prime is 204251. The next prime is 204299. The reversal of 204285 is 582402.

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

It is a cyclic number.

It is not a de Polignac number, because 204285 - 2⁹ = 203773 is a prime.

It is a super-2 number, since 2×204285² = 83464722450, which contains 22 as substring.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 204285.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6795 + ... + 6824.

It is an arithmetic number, because the mean of its divisors is an integer number (40860).

2²⁰⁴²⁸⁵ is an apocalyptic number.

It is an amenable number.

204285 is a deficient number, since it is larger than the sum of its proper divisors (122595).

204285 is a wasteful number, since it uses less digits than its factorization.

204285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13627.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 204285 is about 451.9789818122. The cubic root of 204285 is about 58.8950542706.

Adding to 204285 its reverse (582402), we get a palindrome (786687).

The spelling of 204285 in words is "two hundred four thousand, two hundred eighty-five".