422204420 has 48 divisors (see below), whose sum is σ = 971042688. Its totient is φ = 152924160.

The previous prime is 422204381. The next prime is 422204443. The reversal of 422204420 is 24402224.

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 = 422204392 and 422204401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54212 + ... + 61508.

It is an arithmetic number, because the mean of its divisors is an integer number (20230056).

Almost surely, 2^422204420 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 422204420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485521344).

422204420 is an abundant number, since it is smaller than the sum of its proper divisors (548838268).

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

422204420 is a wasteful number, since it uses less digits than its factorization.

422204420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7580 (or 7578 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 422204420 is about 20547.6134867288. The cubic root of 422204420 is about 750.1951610637.

Adding to 422204420 its reverse (24402224), we get a palindrome (446606644).

The spelling of 422204420 in words is "four hundred twenty-two million, two hundred four thousand, four hundred twenty".