204424420400 has 60 divisors (see below), whose sum is σ = 496648067400. Its totient is φ = 80850992640.

The previous prime is 204424420397. The next prime is 204424420411. The reversal of 204424420400 is 4024424402.

It is a self number, because there is not a number n which added to its sum of digits gives 204424420400.

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, 2835530 + ... + 2906729.

It is an arithmetic number, because the mean of its divisors is an integer number (8277467790).

Almost surely, 2^204424420400 is an apocalyptic number.

204424420400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204424420400 is an abundant number, since it is smaller than the sum of its proper divisors (292223647000).

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

204424420400 is a wasteful number, since it uses less digits than its factorization.

204424420400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5742366 (or 5742355 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 204424420400 its reverse (4024424402), we get a palindrome (208448844802).

The spelling of 204424420400 in words is "two hundred four billion, four hundred twenty-four million, four hundred twenty thousand, four hundred".