43450023 has 4 divisors (see below), whose sum is σ = 57933368. Its totient is φ = 28966680.

The previous prime is 43450021. The next prime is 43450027. The reversal of 43450023 is 32005434.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 43450023 - 2¹ = 43450021 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 (43450021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7241668 + ... + 7241673.

It is an arithmetic number, because the mean of its divisors is an integer number (14483342).

Almost surely, 2^43450023 is an apocalyptic number.

43450023 is a deficient number, since it is larger than the sum of its proper divisors (14483345).

43450023 is a wasteful number, since it uses less digits than its factorization.

43450023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14483344.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 43450023 is about 6591.6631436990. The cubic root of 43450023 is about 351.5577450932.

Adding to 43450023 its reverse (32005434), we get a palindrome (75455457).

The spelling of 43450023 in words is "forty-three million, four hundred fifty thousand, twenty-three".