13331344240 has 40 divisors (see below), whose sum is σ = 32818636080. Its totient is φ = 5018858496.

The previous prime is 13331344231. The next prime is 13331344261. The reversal of 13331344240 is 4244313331.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 13331344199 and 13331344208.

It is a congruent number.

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, 4899870 + ... + 4902589.

It is an arithmetic number, because the mean of its divisors is an integer number (820465902).

Almost surely, 2^13331344240 is an apocalyptic number.

13331344240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13331344240 is an abundant number, since it is smaller than the sum of its proper divisors (19487291840).

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

13331344240 is a wasteful number, since it uses less digits than its factorization.

13331344240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9802489 (or 9802483 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 13331344240 its reverse (4244313331), we get a palindrome (17575657571).

The spelling of 13331344240 in words is "thirteen billion, three hundred thirty-one million, three hundred forty-four thousand, two hundred forty".