20443004330 has 48 divisors (see below), whose sum is σ = 42830985600. Its totient is φ = 7004799648.

The previous prime is 20443004321. The next prime is 20443004357. The reversal of 20443004330 is 3340034402.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20443004296 and 20443004305.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 861971 + ... + 885369.

It is an arithmetic number, because the mean of its divisors is an integer number (892312200).

Almost surely, 2^20443004330 is an apocalyptic number.

20443004330 is an abundant number, since it is smaller than the sum of its proper divisors (22387981270).

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

20443004330 is a wasteful number, since it uses less digits than its factorization.

20443004330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25203 (or 25196 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20443004330 its reverse (3340034402), we get a palindrome (23783038732).

The spelling of 20443004330 in words is "twenty billion, four hundred forty-three million, four thousand, three hundred thirty".