43216212 has 48 divisors (see below), whose sum is σ = 109430720. Its totient is φ = 13195008.

The previous prime is 43216207. The next prime is 43216213. The reversal of 43216212 is 21261234.

43216212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43216213) 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, 20688 + ... + 22680.

Almost surely, 2^43216212 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 43216212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54715360).

43216212 is an abundant number, since it is smaller than the sum of its proper divisors (66214508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43216212 is a wasteful number, since it uses less digits than its factorization.

43216212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152 (or 2150 counting only the distinct ones).

The product of its digits is 576, while the sum is 21.

The square root of 43216212 is about 6573.9038630026. The cubic root of 43216212 is about 350.9260158512.

Adding to 43216212 its reverse (21261234), we get a palindrome (64477446).

The spelling of 43216212 in words is "forty-three million, two hundred sixteen thousand, two hundred twelve".