20443043224 has 16 divisors (see below), whose sum is σ = 38855785320. Its totient is φ = 10081500480.

The previous prime is 20443043219. The next prime is 20443043233. The reversal of 20443043224 is 42234034402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20443043192 and 20443043201.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17502022 + ... + 17503189.

Almost surely, 2^20443043224 is an apocalyptic number.

It is an amenable number.

20443043224 is a deficient number, since it is larger than the sum of its proper divisors (18412742096).

20443043224 is a wasteful number, since it uses less digits than its factorization.

20443043224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35005290 (or 35005286 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 28.

Adding to 20443043224 its reverse (42234034402), we get a palindrome (62677077626).

The spelling of 20443043224 in words is "twenty billion, four hundred forty-three million, forty-three thousand, two hundred twenty-four".