204980280 has 32 divisors (see below), whose sum is σ = 614941200. Its totient is φ = 54661376.

The previous prime is 204980263. The next prime is 204980287. The reversal of 204980280 is 82089402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204980287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 853965 + ... + 854204.

Almost surely, 2^204980280 is an apocalyptic number.

204980280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204980280 is an abundant number, since it is smaller than the sum of its proper divisors (409960920).

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

204980280 is a wasteful number, since it uses less digits than its factorization.

204980280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1708183 (or 1708179 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 204980280 is about 14317.1323944427. The cubic root of 204980280 is about 589.6179466611.

The spelling of 204980280 in words is "two hundred four million, nine hundred eighty thousand, two hundred eighty".