204224660 has 24 divisors (see below), whose sum is σ = 429144576. Its totient is φ = 81637920.

The previous prime is 204224633. The next prime is 204224663. The reversal of 204224660 is 66422402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204224663) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 51509 + ... + 55331.

It is an arithmetic number, because the mean of its divisors is an integer number (17881024).

Almost surely, 2^204224660 is an apocalyptic number.

204224660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204224660 is an abundant number, since it is smaller than the sum of its proper divisors (224919916).

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

204224660 is a wasteful number, since it uses less digits than its factorization.

204224660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6503 (or 6501 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

The square root of 204224660 is about 14290.7193660781. The cubic root of 204224660 is about 588.8925505620.

The spelling of 204224660 in words is "two hundred four million, two hundred twenty-four thousand, six hundred sixty".