204430866 has 8 divisors (see below), whose sum is σ = 408861744. Its totient is φ = 68143620.

The previous prime is 204430859. The next prime is 204430867. The reversal of 204430866 is 668034402.

204430866 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

204430866 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (204430867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17035900 + ... + 17035911.

It is an arithmetic number, because the mean of its divisors is an integer number (51107718).

Almost surely, 2^204430866 is an apocalyptic number.

204430866 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.

204430866 is a wasteful number, since it uses less digits than its factorization.

204430866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34071816.

The product of its (nonzero) digits is 27648, while the sum is 33.

The square root of 204430866 is about 14297.9322281231. The cubic root of 204430866 is about 589.0906858407.

The spelling of 204430866 in words is "two hundred four million, four hundred thirty thousand, eight hundred sixty-six".