204352660 has 12 divisors (see below), whose sum is σ = 429140628. Its totient is φ = 81741056.

The previous prime is 204352649. The next prime is 204352661. The reversal of 204352660 is 66253402.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 150945796 + 53406864 = 12286^2 + 7308^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204352661) 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, 5108797 + ... + 5108836.

It is an arithmetic number, because the mean of its divisors is an integer number (35761719).

Almost surely, 2^204352660 is an apocalyptic number.

204352660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204352660 is an abundant number, since it is smaller than the sum of its proper divisors (224787968).

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

204352660 is a wasteful number, since it uses less digits than its factorization.

204352660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10217642 (or 10217640 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 204352660 is about 14295.1970955283. The cubic root of 204352660 is about 589.0155564450.

The spelling of 204352660 in words is "two hundred four million, three hundred fifty-two thousand, six hundred sixty".