13320342440 has 16 divisors (see below), whose sum is σ = 29970770580. Its totient is φ = 5328136960.

The previous prime is 13320342433. The next prime is 13320342443. The reversal of 13320342440 is 4424302331.

13320342440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 13022917924 + 297424516 = 114118^2 + 17246^2 .

It is not an unprimeable number, because it can be changed into a prime (13320342443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166504241 + ... + 166504320.

Almost surely, 2^13320342440 is an apocalyptic number.

13320342440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13320342440 is an abundant number, since it is smaller than the sum of its proper divisors (16650428140).

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

13320342440 is a wasteful number, since it uses less digits than its factorization.

13320342440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333008572 (or 333008568 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 13320342440 its reverse (4424302331), we get a palindrome (17744644771).

The spelling of 13320342440 in words is "thirteen billion, three hundred twenty million, three hundred forty-two thousand, four hundred forty".