13144404302440 has 64 divisors (see below), whose sum is σ = 31417094016000. Its totient is φ = 4935339797760.

The previous prime is 13144404302437. The next prime is 13144404302483. The reversal of 13144404302440 is 4420340444131.

It is a junction number, because it is equal to n+sod(n) for n = 13144404302396 and 13144404302405.

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, 79253256 + ... + 79418935.

It is an arithmetic number, because the mean of its divisors is an integer number (490892094000).

Almost surely, 2^{13144404302440} is an apocalyptic number.

13144404302440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13144404302440 is an abundant number, since it is smaller than the sum of its proper divisors (18272689713560).

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

13144404302440 is a wasteful number, since it uses less digits than its factorization.

13144404302440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158672330 (or 158672326 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 34.

Adding to 13144404302440 its reverse (4420340444131), we get a palindrome (17564744746571).

The spelling of 13144404302440 in words is "thirteen trillion, one hundred forty-four billion, four hundred four million, three hundred two thousand, four hundred forty".