204389244 has 36 divisors (see below), whose sum is σ = 535788344. Its totient is φ = 68129424.

The previous prime is 204389239. The next prime is 204389261. The reversal of 204389244 is 442983402.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 204389199 and 204389208.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 104167 + ... + 106110.

Almost surely, 2^204389244 is an apocalyptic number.

It is an amenable number.

204389244 is an abundant number, since it is smaller than the sum of its proper divisors (331399100).

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

204389244 is a wasteful number, since it uses less digits than its factorization.

204389244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210296 (or 210282 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The square root of 204389244 is about 14296.4766288761. The cubic root of 204389244 is about 589.0507036253.

The spelling of 204389244 in words is "two hundred four million, three hundred eighty-nine thousand, two hundred forty-four".