20440344334 has 8 divisors (see below), whose sum is σ = 30672552600. Its totient is φ = 10216160136.

The previous prime is 20440344313. The next prime is 20440344377. The reversal of 20440344334 is 43344304402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 20440344296 and 20440344305.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1999644 + ... + 2009839.

It is an arithmetic number, because the mean of its divisors is an integer number (3834069075).

Almost surely, 2^20440344334 is an apocalyptic number.

20440344334 is a deficient number, since it is larger than the sum of its proper divisors (10232208266).

20440344334 is a wasteful number, since it uses less digits than its factorization.

20440344334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4012034.

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 20440344334 its reverse (43344304402), we get a palindrome (63784648736).

The spelling of 20440344334 in words is "twenty billion, four hundred forty million, three hundred forty-four thousand, three hundred thirty-four".