43040212 has 6 divisors (see below), whose sum is σ = 75320378. Its totient is φ = 21520104.

The previous prime is 43040191. The next prime is 43040219. The reversal of 43040212 is 21204034.

43040212 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 only one way, i.e., 42850116 + 190096 = 6546^2 + 436^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43040219) 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 as a sum of consecutive naturals, namely, 5380023 + ... + 5380030.

Almost surely, 2^43040212 is an apocalyptic number.

It is an amenable number.

43040212 is a deficient number, since it is larger than the sum of its proper divisors (32280166).

43040212 is a wasteful number, since it uses less digits than its factorization.

43040212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10760057 (or 10760055 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 43040212 is about 6560.5039440580. The cubic root of 43040212 is about 350.4489802641.

Adding to 43040212 its reverse (21204034), we get a palindrome (64244246).

The spelling of 43040212 in words is "forty-three million, forty thousand, two hundred twelve".