13204022400 has 576 divisors, whose sum is σ = 50498721000. Its totient is φ = 3273523200.

The previous prime is 13204022399. The next prime is 13204022411. The reversal of 13204022400 is 422040231.

13204022400 is a `hidden beast` number, since 1 + 3 + 20 + 402 + 240 + 0 = 666.

It can be written as a sum of positive squares in 12 ways, for example, as 333573696 + 12870448704 = 18264^2 + 113448^2 .

It is a tau number, because it is divible by the number of its divisors (576).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 72950310 + ... + 72950490.

Almost surely, 2^13204022400 is an apocalyptic number.

13204022400 is a gapful number since it is divisible by the number (10) 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 13204022400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25249360500).

13204022400 is an abundant number, since it is smaller than the sum of its proper divisors (37294698600).

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

13204022400 is a wasteful number, since it uses less digits than its factorization.

13204022400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

Adding to 13204022400 its reverse (422040231), we get a palindrome (13626062631).

The spelling of 13204022400 in words is "thirteen billion, two hundred four million, twenty-two thousand, four hundred".