204884856 has 128 divisors (see below), whose sum is σ = 632966400. Its totient is φ = 60877440.

The previous prime is 204884839. The next prime is 204884881. The reversal of 204884856 is 658488402.

204884856 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125115 + ... + 126741.

It is an arithmetic number, because the mean of its divisors is an integer number (4945050).

Almost surely, 2^204884856 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204884856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (316483200).

204884856 is an abundant number, since it is smaller than the sum of its proper divisors (428081544).

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

204884856 is a wasteful number, since it uses less digits than its factorization.

204884856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706 (or 1696 counting only the distinct ones).

The product of its (nonzero) digits is 491520, while the sum is 45.

The square root of 204884856 is about 14313.7994955917. The cubic root of 204884856 is about 589.5264379625.

The spelling of 204884856 in words is "two hundred four million, eight hundred eighty-four thousand, eight hundred fifty-six".