13204021400 has 48 divisors (see below), whose sum is σ = 30808731240. Its totient is φ = 5262790400.

The previous prime is 13204021393. The next prime is 13204021403. The reversal of 13204021400 is 412040231.

It is a super-2 number, since 2×13204021400² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13204021403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61274 + ... + 173673.

Almost surely, 2^13204021400 is an apocalyptic number.

13204021400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13204021400 is an abundant number, since it is smaller than the sum of its proper divisors (17604709840).

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

13204021400 is a wasteful number, since it uses less digits than its factorization.

13204021400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235244 (or 235235 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 13204021400 its reverse (412040231), we get a palindrome (13616061631).

The spelling of 13204021400 in words is "thirteen billion, two hundred four million, twenty-one thousand, four hundred".