43424045 has 18 divisors (see below), whose sum is σ = 60760746. Its totient is φ = 29705760.

The previous prime is 43424033. The next prime is 43424047. The reversal of 43424045 is 54042434.

43424045 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 3 ways, for example, as 6421156 + 37002889 = 2534^2 + 6083^2 .

It is not a de Polignac number, because 43424045 - 2²⁰ = 42375469 is a prime.

It is a Duffinian number.

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 17 ways as a sum of consecutive naturals, for example, 102935 + ... + 103355.

It is an arithmetic number, because the mean of its divisors is an integer number (3375597).

Almost surely, 2^43424045 is an apocalyptic number.

It is an amenable number.

43424045 is a deficient number, since it is larger than the sum of its proper divisors (17336701).

43424045 is an frugal number, since it uses more digits than its factorization.

43424045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 43424045 is about 6589.6923296919. The cubic root of 43424045 is about 351.4876677401.

Adding to 43424045 its reverse (54042434), we get a palindrome (97466479).

The spelling of 43424045 in words is "forty-three million, four hundred twenty-four thousand, forty-five".