43090423 has 4 divisors (see below), whose sum is σ = 45358360. Its totient is φ = 40822488.

The previous prime is 43090391. The next prime is 43090451. The reversal of 43090423 is 32409034.

43090423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 43090423 - 2⁵ = 43090391 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 (43090123) 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 3 ways as a sum of consecutive naturals, for example, 1133940 + ... + 1133977.

It is an arithmetic number, because the mean of its divisors is an integer number (11339590).

Almost surely, 2^43090423 is an apocalyptic number.

43090423 is a deficient number, since it is larger than the sum of its proper divisors (2267937).

43090423 is a wasteful number, since it uses less digits than its factorization.

43090423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2267936.

The product of its (nonzero) digits is 2592, while the sum is 25.

The square root of 43090423 is about 6564.3295925784. The cubic root of 43090423 is about 350.5852060142.

Adding to 43090423 its reverse (32409034), we get a palindrome (75499457).

The spelling of 43090423 in words is "forty-three million, ninety thousand, four hundred twenty-three".