42422227 has 2 divisors, whose sum is σ = 42422228. Its totient is φ = 42422226.

The previous prime is 42422203. The next prime is 42422243. The reversal of 42422227 is 72222424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42422227 is a prime.

It is equal to p_2571730 and since 42422227 and 2571730 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (42422257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21211113 + 21211114.

It is an arithmetic number, because the mean of its divisors is an integer number (21211114).

Almost surely, 2^42422227 is an apocalyptic number.

42422227 is a deficient number, since it is larger than the sum of its proper divisors (1).

42422227 is an equidigital number, since it uses as much as digits as its factorization.

42422227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3584, while the sum is 25.

The square root of 42422227 is about 6513.2347570159. The cubic root of 42422227 is about 348.7636021125.

The spelling of 42422227 in words is "forty-two million, four hundred twenty-two thousand, two hundred twenty-seven".