20443424224 has 36 divisors (see below), whose sum is σ = 42477821064. Its totient is φ = 9683721792.

The previous prime is 20443424203. The next prime is 20443424233. The reversal of 20443424224 is 42242434402.

It is a super-3 number, since 3×20443424224³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 873292 + ... + 896395.

It is an arithmetic number, because the mean of its divisors is an integer number (1179939474).

Almost surely, 2^20443424224 is an apocalyptic number.

It is an amenable number.

20443424224 is an abundant number, since it is smaller than the sum of its proper divisors (22034396840).

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

20443424224 is a wasteful number, since it uses less digits than its factorization.

20443424224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1769735 (or 1769708 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 31.

Adding to 20443424224 its reverse (42242434402), we get a palindrome (62685858626).

The spelling of 20443424224 in words is "twenty billion, four hundred forty-three million, four hundred twenty-four thousand, two hundred twenty-four".