43426443 has 8 divisors (see below), whose sum is σ = 59769856. Its totient is φ = 28017000.

The previous prime is 43426441. The next prime is 43426447. The reversal of 43426443 is 34462434.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 43426443 - 2¹ = 43426441 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 43426443.

It is not an unprimeable number, because it can be changed into a prime (43426441) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233383 + ... + 233568.

It is an arithmetic number, because the mean of its divisors is an integer number (7471232).

Almost surely, 2^43426443 is an apocalyptic number.

43426443 is a deficient number, since it is larger than the sum of its proper divisors (16343413).

43426443 is a wasteful number, since it uses less digits than its factorization.

43426443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 466985.

The product of its digits is 27648, while the sum is 30.

The square root of 43426443 is about 6589.8742780117. The cubic root of 43426443 is about 351.4941376726.

Adding to 43426443 its reverse (34462434), we get a palindrome (77888877).

The spelling of 43426443 in words is "forty-three million, four hundred twenty-six thousand, four hundred forty-three".