4221430422 has 64 divisors (see below), whose sum is σ = 9364322304. Its totient is φ = 1257949440.

The previous prime is 4221430403. The next prime is 4221430459. The reversal of 4221430422 is 2240341224.

It is a junction number, because it is equal to n+sod(n) for n = 4221430392 and 4221430401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1911643 + ... + 1913849.

It is an arithmetic number, because the mean of its divisors is an integer number (146317536).

Almost surely, 2^4221430422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4221430422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4682161152).

4221430422 is an abundant number, since it is smaller than the sum of its proper divisors (5142891882).

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

4221430422 is a wasteful number, since it uses less digits than its factorization.

4221430422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2693.

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 4221430422 is about 64972.5359055655. The cubic root of 4221430422 is about 1616.1681550972.

Adding to 4221430422 its reverse (2240341224), we get a palindrome (6461771646).

The spelling of 4221430422 in words is "four billion, two hundred twenty-one million, four hundred thirty thousand, four hundred twenty-two".