422332220 has 96 divisors (see below), whose sum is σ = 961873920. Its totient is φ = 155393280.

The previous prime is 422332201. The next prime is 422332231. The reversal of 422332220 is 22233224.

422332220 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 422332192 and 422332201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1492199 + ... + 1492481.

It is an arithmetic number, because the mean of its divisors is an integer number (10019520).

Almost surely, 2^422332220 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 422332220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480936960).

422332220 is an abundant number, since it is smaller than the sum of its proper divisors (539541700).

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

422332220 is a wasteful number, since it uses less digits than its factorization.

422332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435 (or 433 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 422332220 is about 20550.7231016332. The cubic root of 422332220 is about 750.2708473624.

Adding to 422332220 its reverse (22233224), we get a palindrome (444565444).

The spelling of 422332220 in words is "four hundred twenty-two million, three hundred thirty-two thousand, two hundred twenty".