422215422 has 16 divisors (see below), whose sum is σ = 844632192. Its totient is φ = 140704920.

The previous prime is 422215411. The next prime is 422215457. The reversal of 422215422 is 224512224.

It is a junction number, because it is equal to n+sod(n) for n = 422215392 and 422215401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45633 + ... + 54099.

It is an arithmetic number, because the mean of its divisors is an integer number (52789512).

Almost surely, 2^422215422 is an apocalyptic number.

422215422 is an abundant number, since it is smaller than the sum of its proper divisors (422416770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422215422 is a wasteful number, since it uses less digits than its factorization.

422215422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16783.

The product of its digits is 2560, while the sum is 24.

The square root of 422215422 is about 20547.8812046401. The cubic root of 422215422 is about 750.2016773190.

Adding to 422215422 its reverse (224512224), we get a palindrome (646727646).

The spelling of 422215422 in words is "four hundred twenty-two million, two hundred fifteen thousand, four hundred twenty-two".