204240444400 has 60 divisors (see below), whose sum is σ = 495273637512. Its totient is φ = 80932645120.

The previous prime is 204240444341. The next prime is 204240444449. The reversal of 204240444400 is 4444042402.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2343187 + ... + 2428786.

Almost surely, 2^204240444400 is an apocalyptic number.

204240444400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204240444400 is an abundant number, since it is smaller than the sum of its proper divisors (291033193112).

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

204240444400 is a wasteful number, since it uses less digits than its factorization.

204240444400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4772098 (or 4772087 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 204240444400 its reverse (4444042402), we get a palindrome (208684486802).

The spelling of 204240444400 in words is "two hundred four billion, two hundred forty million, four hundred forty-four thousand, four hundred".