204651712 has 56 divisors (see below), whose sum is σ = 435620160. Its totient is φ = 95047680.

The previous prime is 204651691. The next prime is 204651721. The reversal of 204651712 is 217156402.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84762 + ... + 87142.

Almost surely, 2^204651712 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 204651712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217810080).

204651712 is an abundant number, since it is smaller than the sum of its proper divisors (230968448).

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

204651712 is a wasteful number, since it uses less digits than its factorization.

204651712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2489 (or 2479 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 204651712 is about 14305.6531483187. The cubic root of 204651712 is about 589.3027404160.

The spelling of 204651712 in words is "two hundred four million, six hundred fifty-one thousand, seven hundred twelve".