4222442420 has 144 divisors (see below), whose sum is σ = 10665145344. Its totient is φ = 1374105600.

The previous prime is 4222442407. The next prime is 4222442423. The reversal of 4222442420 is 242442224.

It is a self number, because there is not a number n which added to its sum of digits gives 4222442420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4222442423) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21877844 + ... + 21878036.

Almost surely, 2^4222442420 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 4222442420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5332572672).

4222442420 is an abundant number, since it is smaller than the sum of its proper divisors (6442702924).

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

4222442420 is a wasteful number, since it uses less digits than its factorization.

4222442420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 309 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

The square root of 4222442420 is about 64980.3233294510. The cubic root of 4222442420 is about 1616.2972920719.

Adding to 4222442420 its reverse (242442224), we get a palindrome (4464884644).

The spelling of 4222442420 in words is "four billion, two hundred twenty-two million, four hundred forty-two thousand, four hundred twenty".