20440024004 has 12 divisors (see below), whose sum is σ = 36098208300. Its totient is φ = 10126250208.

The previous prime is 20440023973. The next prime is 20440024013. The reversal of 20440024004 is 40042004402.

It can be written as a sum of positive squares in 2 ways, for example, as 4652604100 + 15787419904 = 68210^2 + 125648^2 .

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, 23439959 + ... + 23440830.

It is an arithmetic number, because the mean of its divisors is an integer number (3008184025).

Almost surely, 2^20440024004 is an apocalyptic number.

It is an amenable number.

20440024004 is a deficient number, since it is larger than the sum of its proper divisors (15658184296).

20440024004 is a wasteful number, since it uses less digits than its factorization.

20440024004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46880902 (or 46880900 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 20.

Adding to 20440024004 its reverse (40042004402), we get a palindrome (60482028406).

The spelling of 20440024004 in words is "twenty billion, four hundred forty million, twenty-four thousand, four".