204675868 has 24 divisors (see below), whose sum is σ = 361775232. Its totient is φ = 101317104.

The previous prime is 204675859. The next prime is 204675871. The reversal of 204675868 is 868576402.

It is a congruent number.

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, 231355 + ... + 232237.

It is an arithmetic number, because the mean of its divisors is an integer number (15073968).

Almost surely, 2^204675868 is an apocalyptic number.

It is an amenable number.

204675868 is a deficient number, since it is larger than the sum of its proper divisors (157099364).

204675868 is a wasteful number, since it uses less digits than its factorization.

204675868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1401 (or 1399 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 46.

The square root of 204675868 is about 14306.4974050255. The cubic root of 204675868 is about 589.3259255579.

It can be divided in two parts, 20467 and 5868, that added together give a triangular number (26335 = T₂₂₉).

The spelling of 204675868 in words is "two hundred four million, six hundred seventy-five thousand, eight hundred sixty-eight".