204445000 has 80 divisors (see below), whose sum is σ = 494841600. Its totient is φ = 79080000.

The previous prime is 204444991. The next prime is 204445001. The reversal of 204445000 is 544402.

204445000 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (204445001) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 154341 + ... + 155659.

It is an arithmetic number, because the mean of its divisors is an integer number (6185520).

Almost surely, 2^204445000 is an apocalyptic number.

204445000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 204445000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (247420800).

204445000 is an abundant number, since it is smaller than the sum of its proper divisors (290396600).

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

204445000 is a wasteful number, since it uses less digits than its factorization.

204445000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1376 (or 1357 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 19.

The square root of 204445000 is about 14298.4264868551. The cubic root of 204445000 is about 589.1042617682.

Adding to 204445000 its reverse (544402), we get a palindrome (204989402).

The spelling of 204445000 in words is "two hundred four million, four hundred forty-five thousand".