13043340400 has 120 divisors (see below), whose sum is σ = 33036489200. Its totient is φ = 4935168000.

The previous prime is 13043340397. The next prime is 13043340403. The reversal of 13043340400 is 404334031.

It is an interprime number because it is at equal distance from previous prime (13043340397) and next prime (13043340403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13043340403) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9126886 + ... + 9128314.

Almost surely, 2^13043340400 is an apocalyptic number.

13043340400 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 13043340400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16518244600).

13043340400 is an abundant number, since it is smaller than the sum of its proper divisors (19993148800).

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

13043340400 is a wasteful number, since it uses less digits than its factorization.

13043340400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2667 (or 2656 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 13043340400 its reverse (404334031), we get a palindrome (13447674431).

The spelling of 13043340400 in words is "thirteen billion, forty-three million, three hundred forty thousand, four hundred".