13420007540 has 48 divisors (see below), whose sum is σ = 28623266112. Its totient is φ = 5284071936.

The previous prime is 13420007509. The next prime is 13420007617. The reversal of 13420007540 is 4570002431.

13420007540 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2507147 + ... + 2512493.

It is an arithmetic number, because the mean of its divisors is an integer number (596318044).

Almost surely, 2^13420007540 is an apocalyptic number.

13420007540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13420007540 is an abundant number, since it is smaller than the sum of its proper divisors (15203258572).

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

13420007540 is a wasteful number, since it uses less digits than its factorization.

13420007540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7296 (or 7294 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 26.

Adding to 13420007540 its reverse (4570002431), we get a palindrome (17990009971).

The spelling of 13420007540 in words is "thirteen billion, four hundred twenty million, seven thousand, five hundred forty".