13440240032 has 24 divisors (see below), whose sum is σ = 26545030596. Its totient is φ = 6698644992.

The previous prime is 13440240031. The next prime is 13440240043. The reversal of 13440240032 is 23004204431.

It can be written as a sum of positive squares in 2 ways, for example, as 13288556176 + 151683856 = 115276^2 + 12316^2 .

It is a super-2 number, since 2×13440240032² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13440240031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 660923 + ... + 680954.

Almost surely, 2^13440240032 is an apocalyptic number.

It is an amenable number.

13440240032 is a deficient number, since it is larger than the sum of its proper divisors (13104790564).

13440240032 is a wasteful number, since it uses less digits than its factorization.

13440240032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1342200 (or 1342192 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 13440240032 its reverse (23004204431), we get a palindrome (36444444463).

The spelling of 13440240032 in words is "thirteen billion, four hundred forty million, two hundred forty thousand, thirty-two".