204988580 has 12 divisors (see below), whose sum is σ = 430476060. Its totient is φ = 81995424.

The previous prime is 204988517. The next prime is 204988591. The reversal of 204988580 is 85889402.

It can be written as a sum of positive squares in 2 ways, for example, as 68425984 + 136562596 = 8272^2 + 11686^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5124695 + ... + 5124734.

It is an arithmetic number, because the mean of its divisors is an integer number (35873005).

Almost surely, 2^204988580 is an apocalyptic number.

204988580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204988580 is an abundant number, since it is smaller than the sum of its proper divisors (225487480).

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

204988580 is a wasteful number, since it uses less digits than its factorization.

204988580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10249438 (or 10249436 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 44.

The square root of 204988580 is about 14317.4222540232. The cubic root of 204988580 is about 589.6259047647.

The spelling of 204988580 in words is "two hundred four million, nine hundred eighty-eight thousand, five hundred eighty".