13333440344 has 64 divisors (see below), whose sum is σ = 29509920000. Its totient is φ = 5529170304.

The previous prime is 13333440343. The next prime is 13333440371. The reversal of 13333440344 is 44304433331.

13333440344 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 13333440344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13333440343) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 231782 + ... + 283530.

It is an arithmetic number, because the mean of its divisors is an integer number (461092500).

Almost surely, 2^13333440344 is an apocalyptic number.

13333440344 is a gapful number since it is divisible by the number (14) 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 13333440344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14754960000).

13333440344 is an abundant number, since it is smaller than the sum of its proper divisors (16176479656).

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

13333440344 is a wasteful number, since it uses less digits than its factorization.

13333440344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51912 (or 51908 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 13333440344 its reverse (44304433331), we get a palindrome (57637873675).

The spelling of 13333440344 in words is "thirteen billion, three hundred thirty-three million, four hundred forty thousand, three hundred forty-four".