20033404443 has 24 divisors (see below), whose sum is σ = 32168339840. Its totient is φ = 11930561280.

The previous prime is 20033404427. The next prime is 20033404451. The reversal of 20033404443 is 34440433002.

It is not a de Polignac number, because 20033404443 - 2⁴ = 20033404427 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20033404403) 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, 2758078 + ... + 2765331.

Almost surely, 2^20033404443 is an apocalyptic number.

20033404443 is a deficient number, since it is larger than the sum of its proper divisors (12134935397).

20033404443 is a wasteful number, since it uses less digits than its factorization.

20033404443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5523459 (or 5523456 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 20033404443 its reverse (34440433002), we get a palindrome (54473837445).

The spelling of 20033404443 in words is "twenty billion, thirty-three million, four hundred four thousand, four hundred forty-three".