422022004240 has 80 divisors (see below), whose sum is σ = 1013585126400. Its totient is φ = 163245242880.

The previous prime is 422022004231. The next prime is 422022004247. The reversal of 422022004240 is 42400220224.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (422022004247) 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, 3408702 + ... + 3530338.

It is an arithmetic number, because the mean of its divisors is an integer number (12669814080).

Almost surely, 2^422022004240 is an apocalyptic number.

422022004240 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422022004240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (506792563200).

422022004240 is an abundant number, since it is smaller than the sum of its proper divisors (591563122160).

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

422022004240 is a wasteful number, since it uses less digits than its factorization.

422022004240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123080 (or 123074 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 22.

Adding to 422022004240 its reverse (42400220224), we get a palindrome (464422224464).

The spelling of 422022004240 in words is "four hundred twenty-two billion, twenty-two million, four thousand, two hundred forty".