22494430422 has 96 divisors (see below), whose sum is σ = 51746542848. Its totient is φ = 7047636288.

The previous prime is 22494430421. The next prime is 22494430463. The reversal of 22494430422 is 22403449422.

22494430422 is a `hidden beast` number, since 224 + 9 + 4 + 4 + 3 + 0 + 422 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22494430421) 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, 6767653 + ... + 6770975.

It is an arithmetic number, because the mean of its divisors is an integer number (539026488).

Almost surely, 2^22494430422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22494430422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25873271424).

22494430422 is an abundant number, since it is smaller than the sum of its proper divisors (29252112426).

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

22494430422 is a wasteful number, since it uses less digits than its factorization.

22494430422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3634 (or 3631 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 22494430422 its reverse (22403449422), we get a palindrome (44897879844).

The spelling of 22494430422 in words is "twenty-two billion, four hundred ninety-four million, four hundred thirty thousand, four hundred twenty-two".