42922219 has 2 divisors, whose sum is σ = 42922220. Its totient is φ = 42922218.

The previous prime is 42922211. The next prime is 42922241. The reversal of 42922219 is 91222924.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42922219 - 2³ = 42922211 is a prime.

It is a super-2 number, since 2×42922219² = 3684633767767922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (42922211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21461109 + 21461110.

It is an arithmetic number, because the mean of its divisors is an integer number (21461110).

Almost surely, 2^42922219 is an apocalyptic number.

42922219 is a deficient number, since it is larger than the sum of its proper divisors (1).

42922219 is an equidigital number, since it uses as much as digits as its factorization.

42922219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 31.

The square root of 42922219 is about 6551.5050942512. The cubic root of 42922219 is about 350.1284399353.

The spelling of 42922219 in words is "forty-two million, nine hundred twenty-two thousand, two hundred nineteen".