43223943 has 16 divisors (see below), whose sum is σ = 65976320. Its totient is φ = 24657696.

The previous prime is 43223941. The next prime is 43223977. The reversal of 43223943 is 34932234.

43223943 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 43223943 - 2¹ = 43223941 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 43223943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43223941) 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 15 ways as a sum of consecutive naturals, for example, 14538 + ... + 17256.

It is an arithmetic number, because the mean of its divisors is an integer number (4123520).

Almost surely, 2^43223943 is an apocalyptic number.

43223943 is a deficient number, since it is larger than the sum of its proper divisors (22752377).

43223943 is a wasteful number, since it uses less digits than its factorization.

43223943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3486.

The product of its digits is 15552, while the sum is 30.

The square root of 43223943 is about 6574.4918434811. The cubic root of 43223943 is about 350.9469404621.

The spelling of 43223943 in words is "forty-three million, two hundred twenty-three thousand, nine hundred forty-three".