43222849 has 4 divisors (see below), whose sum is σ = 43650900. Its totient is φ = 42794800.

The previous prime is 43222841. The next prime is 43222859. The reversal of 43222849 is 94822234.

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 20250000 + 22972849 = 4500^2 + 4793^2 .

It is a cyclic number.

It is not a de Polignac number, because 43222849 - 2³ = 43222841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43222841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 213874 + ... + 214075.

It is an arithmetic number, because the mean of its divisors is an integer number (10912725).

Almost surely, 2^43222849 is an apocalyptic number.

It is an amenable number.

43222849 is a deficient number, since it is larger than the sum of its proper divisors (428051).

43222849 is a wasteful number, since it uses less digits than its factorization.

43222849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 428050.

The product of its digits is 27648, while the sum is 34.

The square root of 43222849 is about 6574.4086426081. The cubic root of 43222849 is about 350.9439796094.

The spelling of 43222849 in words is "forty-three million, two hundred twenty-two thousand, eight hundred forty-nine".