13420003344 has 160 divisors (see below), whose sum is σ = 39494615040. Its totient is φ = 3889267200.

The previous prime is 13420003327. The next prime is 13420003349. The reversal of 13420003344 is 44330002431.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (13420003349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1634289 + ... + 1642479.

It is an arithmetic number, because the mean of its divisors is an integer number (246841344).

Almost surely, 2^13420003344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13420003344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19747307520).

13420003344 is an abundant number, since it is smaller than the sum of its proper divisors (26074611696).

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

13420003344 is a wasteful number, since it uses less digits than its factorization.

13420003344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8349 (or 8343 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 13420003344 its reverse (44330002431), we get a palindrome (57750005775).

The spelling of 13420003344 in words is "thirteen billion, four hundred twenty million, three thousand, three hundred forty-four".