204426880 has 64 divisors (see below), whose sum is σ = 558535680. Its totient is φ = 70087680.

The previous prime is 204426877. The next prime is 204426907. The reversal of 204426880 is 88624402.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18336 + ... + 27295.

It is an arithmetic number, because the mean of its divisors is an integer number (8727120).

Almost surely, 2^204426880 is an apocalyptic number.

204426880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204426880 is an abundant number, since it is smaller than the sum of its proper divisors (354108800).

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

204426880 is an equidigital number, since it uses as much as digits as its factorization.

204426880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45657 (or 45645 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 34.

The square root of 204426880 is about 14297.7928366584. The cubic root of 204426880 is about 589.0868571123.

The spelling of 204426880 in words is "two hundred four million, four hundred twenty-six thousand, eight hundred eighty".