43230421 has 16 divisors (see below), whose sum is σ = 47779200. Its totient is φ = 38870208.

The previous prime is 43230401. The next prime is 43230427. The reversal of 43230421 is 12403234.

43230421 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 43230421 - 2⁵ = 43230389 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 (43230427) 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, 120240 + ... + 120598.

It is an arithmetic number, because the mean of its divisors is an integer number (2986200).

Almost surely, 2^43230421 is an apocalyptic number.

It is an amenable number.

43230421 is a deficient number, since it is larger than the sum of its proper divisors (4548779).

43230421 is a wasteful number, since it uses less digits than its factorization.

43230421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 43230421 is about 6574.9844866737. The cubic root of 43230421 is about 350.9644718005.

Adding to 43230421 its reverse (12403234), we get a palindrome (55633655).

The spelling of 43230421 in words is "forty-three million, two hundred thirty thousand, four hundred twenty-one".