204366 has 8 divisors (see below), whose sum is σ = 408744. Its totient is φ = 68120.

The previous prime is 204361. The next prime is 204367. The reversal of 204366 is 663402.

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

204366 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204361) by changing a digit.

204366 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 3 ways as a sum of consecutive naturals, for example, 17025 + ... + 17036.

It is an arithmetic number, because the mean of its divisors is an integer number (51093).

2²⁰⁴³⁶⁶ is an apocalyptic number.

204366 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

204366 is a wasteful number, since it uses less digits than its factorization.

204366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34066.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 204366 is about 452.0685788683. The cubic root of 204366 is about 58.9028373009.

Adding to 204366 its reverse (663402), we get a palindrome (867768).

The spelling of 204366 in words is "two hundred four thousand, three hundred sixty-six".