20340444412 has 12 divisors (see below), whose sum is σ = 35603476776. Its totient is φ = 10168022480.

The previous prime is 20340444407. The next prime is 20340444431. The reversal of 20340444412 is 21444404302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 529039 + ... + 566182.

It is an arithmetic number, because the mean of its divisors is an integer number (2966956398).

Almost surely, 2^20340444412 is an apocalyptic number.

It is an amenable number.

20340444412 is a deficient number, since it is larger than the sum of its proper divisors (15263032364).

20340444412 is a wasteful number, since it uses less digits than its factorization.

20340444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099868 (or 1099866 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20340444412 its reverse (21444404302), we get a palindrome (41784848714).

The spelling of 20340444412 in words is "twenty billion, three hundred forty million, four hundred forty-four thousand, four hundred twelve".