43420013 has 16 divisors (see below), whose sum is σ = 54001920. Its totient is φ = 33993216.

The previous prime is 43420007. The next prime is 43420031. The reversal of 43420013 is 31002434.

43420013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 43420013 - 2¹⁴ = 43403629 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 43419973 and 43420000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43420033) 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 15 ways as a sum of consecutive naturals, for example, 6368 + ... + 11286.

It is an arithmetic number, because the mean of its divisors is an integer number (3375120).

Almost surely, 2^43420013 is an apocalyptic number.

It is an amenable number.

43420013 is a deficient number, since it is larger than the sum of its proper divisors (10581907).

43420013 is a wasteful number, since it uses less digits than its factorization.

43420013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036.

The product of its (nonzero) digits is 288, while the sum is 17.

The square root of 43420013 is about 6589.3863902491. The cubic root of 43420013 is about 351.4767886512.

Adding to 43420013 its reverse (31002434), we get a palindrome (74422447).

The spelling of 43420013 in words is "forty-three million, four hundred twenty thousand, thirteen".