422215 has 4 divisors (see below), whose sum is σ = 506664. Its totient is φ = 337768.

The previous prime is 422209. The next prime is 422231. The reversal of 422215 is 512224.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 422215 - 2⁵ = 422183 is a prime.

It is a Duffinian number.

422215 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42217 + ... + 42226.

It is an arithmetic number, because the mean of its divisors is an integer number (126666).

2⁴²²²¹⁵ is an apocalyptic number.

422215 is a deficient number, since it is larger than the sum of its proper divisors (84449).

422215 is an equidigital number, since it uses as much as digits as its factorization.

422215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84448.

The product of its digits is 160, while the sum is 16.

The square root of 422215 is about 649.7807322474. The cubic root of 422215 is about 75.0201427379.

Adding to 422215 its reverse (512224), we get a palindrome (934439).

Subtracting 422215 from its reverse (512224), we obtain a palindrome (90009).

The spelling of 422215 in words is "four hundred twenty-two thousand, two hundred fifteen".