422440424220 has 48 divisors (see below), whose sum is σ = 1223620544160. Its totient is φ = 108766269696.

The previous prime is 422440424213. The next prime is 422440424233. The reversal of 422440424220 is 22424044224.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 121389187 + ... + 121392666.

It is an arithmetic number, because the mean of its divisors is an integer number (25492094670).

Almost surely, 2^422440424220 is an apocalyptic number.

It is an amenable number.

422440424220 is an abundant number, since it is smaller than the sum of its proper divisors (801180119940).

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

422440424220 is a wasteful number, since it uses less digits than its factorization.

422440424220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242781894 (or 242781892 counting only the distinct ones).

The product of its (nonzero) digits is 32768, while the sum is 30.

Adding to 422440424220 its reverse (22424044224), we get a palindrome (444864468444).

The spelling of 422440424220 in words is "four hundred twenty-two billion, four hundred forty million, four hundred twenty-four thousand, two hundred twenty".