42322243 has 2 divisors, whose sum is σ = 42322244. Its totient is φ = 42322242.

The previous prime is 42322237. The next prime is 42322271. The reversal of 42322243 is 34222324.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42322243 - 2⁹ = 42321731 is a prime.

It is not a weakly prime, because it can be changed into another prime (42322213) 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 as a sum of consecutive naturals, namely, 21161121 + 21161122.

It is an arithmetic number, because the mean of its divisors is an integer number (21161122).

Almost surely, 2^42322243 is an apocalyptic number.

42322243 is a deficient number, since it is larger than the sum of its proper divisors (1).

42322243 is an equidigital number, since it uses as much as digits as its factorization.

42322243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 22.

The square root of 42322243 is about 6505.5547803396. The cubic root of 42322243 is about 348.4893888539.

Adding to 42322243 its reverse (34222324), we get a palindrome (76544567).

The spelling of 42322243 in words is "forty-two million, three hundred twenty-two thousand, two hundred forty-three".