43421416 has 16 divisors (see below), whose sum is σ = 82952100. Its totient is φ = 21300864.

The previous prime is 43421393. The next prime is 43421429. The reversal of 43421416 is 61412434.

43421416 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 33524100 + 9897316 = 5790^2 + 3146^2 .

It is an unprimeable number.

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, 50781 + ... + 51628.

Almost surely, 2^43421416 is an apocalyptic number.

It is an amenable number.

43421416 is a deficient number, since it is larger than the sum of its proper divisors (39530684).

43421416 is a wasteful number, since it uses less digits than its factorization.

43421416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102468 (or 102464 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

The square root of 43421416 is about 6589.4928484672. The cubic root of 43421416 is about 351.4805742836.

The spelling of 43421416 in words is "forty-three million, four hundred twenty-one thousand, four hundred sixteen".