13244344424440 has 64 divisors (see below), whose sum is σ = 30590330400000. Its totient is φ = 5157734108160.

The previous prime is 13244344424419. The next prime is 13244344424573. The reversal of 13244344424440 is 4442444344231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7644315 + ... + 9215434.

It is an arithmetic number, because the mean of its divisors is an integer number (477973912500).

Almost surely, 2^{13244344424440} is an apocalyptic number.

13244344424440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13244344424440 is an abundant number, since it is smaller than the sum of its proper divisors (17345985975560).

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

13244344424440 is a wasteful number, since it uses less digits than its factorization.

13244344424440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16860280 (or 16860276 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 43.

Adding to 13244344424440 its reverse (4442444344231), we get a palindrome (17686788768671).

The spelling of 13244344424440 in words is "thirteen trillion, two hundred forty-four billion, three hundred forty-four million, four hundred twenty-four thousand, four hundred forty".