204681366 has 12 divisors (see below), whose sum is σ = 443476332. Its totient is φ = 68227116.

The previous prime is 204681353. The next prime is 204681397. The reversal of 204681366 is 663186402.

It is a self number, because there is not a number n which added to its sum of digits gives 204681366.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5685576 + ... + 5685611.

It is an arithmetic number, because the mean of its divisors is an integer number (36956361).

Almost surely, 2^204681366 is an apocalyptic number.

204681366 is an abundant number, since it is smaller than the sum of its proper divisors (238794966).

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

204681366 is a wasteful number, since it uses less digits than its factorization.

204681366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11371195 (or 11371192 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 204681366 is about 14306.6895541911. The cubic root of 204681366 is about 589.3312023320.

The spelling of 204681366 in words is "two hundred four million, six hundred eighty-one thousand, three hundred sixty-six".