20212432344 has 192 divisors, whose sum is σ = 61350307200. Its totient is φ = 5971350528.

The previous prime is 20212432307. The next prime is 20212432349. The reversal of 20212432344 is 44323421202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20212432349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2327242 + ... + 2335910.

It is an arithmetic number, because the mean of its divisors is an integer number (319532850).

Almost surely, 2^20212432344 is an apocalyptic number.

20212432344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20212432344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30675153600).

20212432344 is an abundant number, since it is smaller than the sum of its proper divisors (41137874856).

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

20212432344 is a wasteful number, since it uses less digits than its factorization.

20212432344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8794 (or 8787 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20212432344 its reverse (44323421202), we get a palindrome (64535853546).

The spelling of 20212432344 in words is "twenty billion, two hundred twelve million, four hundred thirty-two thousand, three hundred forty-four".