13303013440 has 56 divisors (see below), whose sum is σ = 31687736472. Its totient is φ = 5319536640.

The previous prime is 13303013389. The next prime is 13303013459. The reversal of 13303013440 is 4431030331.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6846569536 + 6456443904 = 82744^2 + 80352^2 .

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, 1774500 + ... + 1781980.

It is an arithmetic number, because the mean of its divisors is an integer number (565852437).

Almost surely, 2^13303013440 is an apocalyptic number.

13303013440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13303013440 is an abundant number, since it is smaller than the sum of its proper divisors (18384723032).

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

13303013440 is an equidigital number, since it uses as much as digits as its factorization.

13303013440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13055 (or 13045 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13303013440 its reverse (4431030331), we get a palindrome (17734043771).

The spelling of 13303013440 in words is "thirteen billion, three hundred three million, thirteen thousand, four hundred forty".