204585030 has 48 divisors (see below), whose sum is σ = 572841360. Its totient is φ = 50359104.

The previous prime is 204585011. The next prime is 204585047. The reversal of 204585030 is 30585402.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 204584985 and 204585003.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86260 + ... + 88599.

It is an arithmetic number, because the mean of its divisors is an integer number (11934195).

Almost surely, 2^204585030 is an apocalyptic number.

204585030 is an abundant number, since it is smaller than the sum of its proper divisors (368256330).

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

204585030 is a wasteful number, since it uses less digits than its factorization.

204585030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174885 (or 174882 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 204585030 is about 14303.3223413304. The cubic root of 204585030 is about 589.2387289732.

The spelling of 204585030 in words is "two hundred four million, five hundred eighty-five thousand, thirty".