422322402340 has 192 divisors, whose sum is σ = 1009336204800. Its totient is φ = 147566555136.

The previous prime is 422322402287. The next prime is 422322402343. The reversal of 422322402340 is 43204223224.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 422322402299 and 422322402308.

It is not an unprimeable number, because it can be changed into a prime (422322402343) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 261823374 + ... + 261824986.

It is an arithmetic number, because the mean of its divisors is an integer number (5256959400).

Almost surely, 2^422322402340 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 422322402340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (504668102400).

422322402340 is an abundant number, since it is smaller than the sum of its proper divisors (587013802460).

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

422322402340 is a wasteful number, since it uses less digits than its factorization.

422322402340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2726 (or 2724 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 422322402340 its reverse (43204223224), we get a palindrome (465526625564).

The spelling of 422322402340 in words is "four hundred twenty-two billion, three hundred twenty-two million, four hundred two thousand, three hundred forty".