422433220 has 48 divisors (see below), whose sum is σ = 972720000. Its totient is φ = 152824320.

The previous prime is 422433197. The next prime is 422433229. The reversal of 422433220 is 22334224.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 422433191 and 422433200.

It is not an unprimeable number, because it can be changed into a prime (422433229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38956 + ... + 48604.

It is an arithmetic number, because the mean of its divisors is an integer number (20265000).

Almost surely, 2^422433220 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422433220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (486360000).

422433220 is an abundant number, since it is smaller than the sum of its proper divisors (550286780).

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

422433220 is a wasteful number, since it uses less digits than its factorization.

422433220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9868 (or 9866 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 22.

The square root of 422433220 is about 20553.1802891913. The cubic root of 422433220 is about 750.3306512420.

Adding to 422433220 its reverse (22334224), we get a palindrome (444767444).

The spelling of 422433220 in words is "four hundred twenty-two million, four hundred thirty-three thousand, two hundred twenty".