13044320030440 has 32 divisors (see below), whose sum is σ = 29361617218080. Its totient is φ = 5215612963392.

The previous prime is 13044320030437. The next prime is 13044320030453. The reversal of 13044320030440 is 4403002344031.

It is a junction number, because it is equal to n+sod(n) for n = 13044320030399 and 13044320030408.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65995362 + ... + 66192721.

It is an arithmetic number, because the mean of its divisors is an integer number (917550538065).

Almost surely, 2^{13044320030440} is an apocalyptic number.

13044320030440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13044320030440 is an abundant number, since it is smaller than the sum of its proper divisors (16317297187640).

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

13044320030440 is a wasteful number, since it uses less digits than its factorization.

13044320030440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132190561 (or 132190557 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 13044320030440 its reverse (4403002344031), we get a palindrome (17447322374471).

The spelling of 13044320030440 in words is "thirteen trillion, forty-four billion, three hundred twenty million, thirty thousand, four hundred forty".