43443243 has 8 divisors (see below), whose sum is σ = 64360400. Its totient is φ = 28962144.

The previous prime is 43443233. The next prime is 43443259. The reversal of 43443243 is 34234434.

43443243 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 43443243 - 2⁴ = 43443227 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1609009 = 43443243 / (4 + 3 + 4 + 4 + 3 + 2 + 4 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43443233) 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 7 ways as a sum of consecutive naturals, for example, 804478 + ... + 804531.

It is an arithmetic number, because the mean of its divisors is an integer number (8045050).

Almost surely, 2^43443243 is an apocalyptic number.

43443243 is a deficient number, since it is larger than the sum of its proper divisors (20917157).

43443243 is a wasteful number, since it uses less digits than its factorization.

43443243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1609018 (or 1609012 counting only the distinct ones).

The product of its digits is 13824, while the sum is 27.

The square root of 43443243 is about 6591.1488376458. The cubic root of 43443243 is about 351.5394582943.

Adding to 43443243 its reverse (34234434), we get a palindrome (77677677).

The spelling of 43443243 in words is "forty-three million, four hundred forty-three thousand, two hundred forty-three".