204800880 has 80 divisors (see below), whose sum is σ = 655386624. Its totient is φ = 52849920.

The previous prime is 204800879. The next prime is 204800891. The reversal of 204800880 is 88008402.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6324 + ... + 21203.

Almost surely, 2^204800880 is an apocalyptic number.

204800880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204800880 is an abundant number, since it is smaller than the sum of its proper divisors (450585744).

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

204800880 is a wasteful number, since it uses less digits than its factorization.

204800880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27574 (or 27568 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 204800880 is about 14310.8658019003. The cubic root of 204800880 is about 589.4458840385.

The spelling of 204800880 in words is "two hundred four million, eight hundred thousand, eight hundred eighty".