13440024020 has 12 divisors (see below), whose sum is σ = 28224050484. Its totient is φ = 5376009600.

The previous prime is 13440024001. The next prime is 13440024029. The reversal of 13440024020 is 2042004431.

13440024020 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 8082369604 + 5357654416 = 89902^2 + 73196^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 672001201 = 13440024020 / (1 + 3 + 4 + 4 + 0 + 0 + 2 + 4 + 0 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 13440023983 and 13440024001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13440024029) 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, 336000581 + ... + 336000620.

It is an arithmetic number, because the mean of its divisors is an integer number (2352004207).

Almost surely, 2^13440024020 is an apocalyptic number.

13440024020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13440024020 is an abundant number, since it is smaller than the sum of its proper divisors (14784026464).

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

13440024020 is a wasteful number, since it uses less digits than its factorization.

13440024020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 672001210 (or 672001208 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 13440024020 its reverse (2042004431), we get a palindrome (15482028451).

The spelling of 13440024020 in words is "thirteen billion, four hundred forty million, twenty-four thousand, twenty".