43421041 has 4 divisors (see below), whose sum is σ = 43805412. Its totient is φ = 43036672.

The previous prime is 43421039. The next prime is 43421047. The reversal of 43421041 is 14012434.

43421041 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 can be written as a sum of positive squares in 2 ways, for example, as 5856400 + 37564641 = 2420^2 + 6129^2 .

It is a cyclic number.

It is not a de Polignac number, because 43421041 - 2¹ = 43421039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43421047) 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, 192016 + ... + 192241.

It is an arithmetic number, because the mean of its divisors is an integer number (10951353).

Almost surely, 2^43421041 is an apocalyptic number.

It is an amenable number.

43421041 is a deficient number, since it is larger than the sum of its proper divisors (384371).

43421041 is a wasteful number, since it uses less digits than its factorization.

43421041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384370.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 43421041 is about 6589.4643940156. The cubic root of 43421041 is about 351.4795624511.

Adding to 43421041 its reverse (14012434), we get a palindrome (57433475).

The spelling of 43421041 in words is "forty-three million, four hundred twenty-one thousand, forty-one".