204605676 has 180 divisors, whose sum is σ = 624537144. Its totient is φ = 58164480.

The previous prime is 204605663. The next prime is 204605717. The reversal of 204605676 is 676506402.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 204605676.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 666315 + ... + 666621.

Almost surely, 2^204605676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204605676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312268572).

204605676 is an abundant number, since it is smaller than the sum of its proper divisors (419931468).

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

204605676 is a wasteful number, since it uses less digits than its factorization.

204605676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 362 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 204605676 is about 14304.0440435564. The cubic root of 204605676 is about 589.2585496049.

The spelling of 204605676 in words is "two hundred four million, six hundred five thousand, six hundred seventy-six".