20448210432 has 240 divisors, whose sum is σ = 60610785840. Its totient is φ = 6118834176.

The previous prime is 20448210427. The next prime is 20448210439. The reversal of 20448210432 is 23401284402.

It is a self number, because there is not a number n which added to its sum of digits gives 20448210432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20448210439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9603544 + ... + 9605672.

It is an arithmetic number, because the mean of its divisors is an integer number (252544941).

Almost surely, 2^20448210432 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 20448210432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30305392920).

20448210432 is an abundant number, since it is smaller than the sum of its proper divisors (40162575408).

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

20448210432 is a wasteful number, since it uses less digits than its factorization.

20448210432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2213 (or 2184 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 20448210432 its reverse (23401284402), we get a palindrome (43849494834).

The spelling of 20448210432 in words is "twenty billion, four hundred forty-eight million, two hundred ten thousand, four hundred thirty-two".