20440143003004 has 24 divisors (see below), whose sum is σ = 36643687245648. Its totient is φ = 9970531570560.

The previous prime is 20440143002977. The next prime is 20440143003047. The reversal of 20440143003004 is 40030034104402.

It is a self number, because there is not a number n which added to its sum of digits gives 20440143003004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4458387 + ... + 7794709.

It is an arithmetic number, because the mean of its divisors is an integer number (1526820301902).

Almost surely, 2^{20440143003004} is an apocalyptic number.

It is an amenable number.

20440143003004 is a deficient number, since it is larger than the sum of its proper divisors (16203544242644).

20440143003004 is a wasteful number, since it uses less digits than its factorization.

20440143003004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373725 (or 3373723 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 20440143003004 its reverse (40030034104402), we get a palindrome (60470177107406).

The spelling of 20440143003004 in words is "twenty trillion, four hundred forty billion, one hundred forty-three million, three thousand, four".