43244213 has 2 divisors, whose sum is σ = 43244214. Its totient is φ = 43244212.

The previous prime is 43244207. The next prime is 43244263. The reversal of 43244213 is 31244234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41190724 + 2053489 = 6418^2 + 1433^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43244213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43244263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21622106 + 21622107.

It is an arithmetic number, because the mean of its divisors is an integer number (21622107).

Almost surely, 2^43244213 is an apocalyptic number.

It is an amenable number.

43244213 is a deficient number, since it is larger than the sum of its proper divisors (1).

43244213 is an equidigital number, since it uses as much as digits as its factorization.

43244213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 23.

The square root of 43244213 is about 6576.0332268017. The cubic root of 43244213 is about 351.0017911019.

Adding to 43244213 its reverse (31244234), we get a palindrome (74488447).

The spelling of 43244213 in words is "forty-three million, two hundred forty-four thousand, two hundred thirteen".