4043423 has 16 divisors (see below), whose sum is σ = 4478976. Its totient is φ = 3637920.

The previous prime is 4043411. The next prime is 4043437. The reversal of 4043423 is 3243404.

It is a happy number.

It is not a de Polignac number, because 4043423 - 2⁴ = 4043407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4043395 and 4043404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37736 + ... + 37842.

It is an arithmetic number, because the mean of its divisors is an integer number (279936).

Almost surely, 2^4043423 is an apocalyptic number.

4043423 is a deficient number, since it is larger than the sum of its proper divisors (435553).

4043423 is a wasteful number, since it uses less digits than its factorization.

4043423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 4043423 is about 2010.8264470113. The cubic root of 4043423 is about 159.3124533756.

Adding to 4043423 its reverse (3243404), we get a palindrome (7286827).

The spelling of 4043423 in words is "four million, forty-three thousand, four hundred twenty-three".