20013244004 has 12 divisors (see below), whose sum is σ = 37717267644. Its totient is φ = 9236881824.

The previous prime is 20013244003. The next prime is 20013244007. The reversal of 20013244004 is 40044231002.

It can be written as a sum of positive squares in 2 ways, for example, as 5306831104 + 14706412900 = 72848^2 + 121270^2 .

It is not an unprimeable number, because it can be changed into a prime (20013244003) by changing a digit.

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, 192434987 + ... + 192435090.

It is an arithmetic number, because the mean of its divisors is an integer number (3143105637).

Almost surely, 2^20013244004 is an apocalyptic number.

It is an amenable number.

20013244004 is a deficient number, since it is larger than the sum of its proper divisors (17704023640).

20013244004 is a wasteful number, since it uses less digits than its factorization.

20013244004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 384870094 (or 384870092 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 20013244004 its reverse (40044231002), we get a palindrome (60057475006).

The spelling of 20013244004 in words is "twenty billion, thirteen million, two hundred forty-four thousand, four".