204120444 has 48 divisors (see below), whose sum is σ = 537505920. Its totient is φ = 59720640.

The previous prime is 204120419. The next prime is 204120463. The reversal of 204120444 is 444021402.

It is a self number, because there is not a number n which added to its sum of digits gives 204120444.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22834 + ... + 30489.

It is an arithmetic number, because the mean of its divisors is an integer number (11198040).

Almost surely, 2^204120444 is an apocalyptic number.

It is an amenable number.

204120444 is an abundant number, since it is smaller than the sum of its proper divisors (333385476).

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

204120444 is a wasteful number, since it uses less digits than its factorization.

204120444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53370 (or 53368 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 204120444 is about 14287.0726182798. The cubic root of 204120444 is about 588.7923627453.

Adding to 204120444 its reverse (444021402), we get a palindrome (648141846).

The spelling of 204120444 in words is "two hundred four million, one hundred twenty thousand, four hundred forty-four".