20324222436 has 96 divisors (see below), whose sum is σ = 54641052928. Its totient is φ = 5759631360.

The previous prime is 20324222431. The next prime is 20324222459. The reversal of 20324222436 is 63422242302.

It is not an unprimeable number, because it can be changed into a prime (20324222431) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6045396 + ... + 6048756.

Almost surely, 2^20324222436 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 20324222436, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27320526464).

20324222436 is an abundant number, since it is smaller than the sum of its proper divisors (34316830492).

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

20324222436 is a wasteful number, since it uses less digits than its factorization.

20324222436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3941 (or 3939 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 20324222436 its reverse (63422242302), we get a palindrome (83746464738).

The spelling of 20324222436 in words is "twenty billion, three hundred twenty-four million, two hundred twenty-two thousand, four hundred thirty-six".