422007220 has 24 divisors (see below), whose sum is σ = 924747264. Its totient is φ = 161463456.

The previous prime is 422007191. The next prime is 422007227. The reversal of 422007220 is 22700224.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422007227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458244 + ... + 459163.

It is an arithmetic number, because the mean of its divisors is an integer number (38531136).

Almost surely, 2^422007220 is an apocalyptic number.

It is an amenable number.

422007220 is an abundant number, since it is smaller than the sum of its proper divisors (502740044).

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

422007220 is a wasteful number, since it uses less digits than its factorization.

422007220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917439 (or 917437 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 422007220 is about 20542.8143154729. The cubic root of 422007220 is about 750.0783444085.

Adding to 422007220 its reverse (22700224), we get a palindrome (444707444).

The spelling of 422007220 in words is "four hundred twenty-two million, seven thousand, two hundred twenty".