13240243440044 has 48 divisors (see below), whose sum is σ = 23766942538752. Its totient is φ = 6451841797632.

The previous prime is 13240243440023. The next prime is 13240243440077. The reversal of 13240243440044 is 44004434204231.

It is a junction number, because it is equal to n+sod(n) for n = 13240243439986 and 13240243440013.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76003289 + ... + 76177295.

It is an arithmetic number, because the mean of its divisors is an integer number (495144636224).

Almost surely, 2^{13240243440044} is an apocalyptic number.

It is an amenable number.

13240243440044 is a deficient number, since it is larger than the sum of its proper divisors (10526699098708).

13240243440044 is a wasteful number, since it uses less digits than its factorization.

13240243440044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177102 (or 177100 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 13240243440044 its reverse (44004434204231), we get a palindrome (57244677644275).

The spelling of 13240243440044 in words is "thirteen trillion, two hundred forty billion, two hundred forty-three million, four hundred forty thousand, forty-four".