13424340340 has 12 divisors (see below), whose sum is σ = 28191114756. Its totient is φ = 5369736128.

The previous prime is 13424340331. The next prime is 13424340341. The reversal of 13424340340 is 4304342431.

It can be written as a sum of positive squares in 2 ways, for example, as 10488217744 + 2936122596 = 102412^2 + 54186^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13424340299 and 13424340308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13424340341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 335608489 + ... + 335608528.

It is an arithmetic number, because the mean of its divisors is an integer number (2349259563).

Almost surely, 2^13424340340 is an apocalyptic number.

13424340340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13424340340 is an abundant number, since it is smaller than the sum of its proper divisors (14766774416).

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

13424340340 is a wasteful number, since it uses less digits than its factorization.

13424340340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 671217026 (or 671217024 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 13424340340 its reverse (4304342431), we get a palindrome (17728682771).

The spelling of 13424340340 in words is "thirteen billion, four hundred twenty-four million, three hundred forty thousand, three hundred forty".