43424043 has 24 divisors (see below), whose sum is σ = 64254960. Its totient is φ = 26058240.

The previous prime is 43424033. The next prime is 43424047. The reversal of 43424043 is 34042434.

It is a happy number.

43424043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 43424043 - 2¹⁰ = 43423019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43424047) 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 23 ways as a sum of consecutive naturals, for example, 19743 + ... + 21831.

It is an arithmetic number, because the mean of its divisors is an integer number (2677290).

Almost surely, 2^43424043 is an apocalyptic number.

43424043 is a deficient number, since it is larger than the sum of its proper divisors (20830917).

43424043 is a wasteful number, since it uses less digits than its factorization.

43424043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2159 (or 2146 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 24.

The square root of 43424043 is about 6589.6921779397. The cubic root of 43424043 is about 351.4876623439.

Adding to 43424043 its reverse (34042434), we get a palindrome (77466477).

It can be divided in two parts, 4342 and 4043, that added together give a triangular number (8385 = T₁₂₉).

The spelling of 43424043 in words is "forty-three million, four hundred twenty-four thousand, forty-three".