20440044040220 has 48 divisors (see below), whose sum is σ = 49065728140800. Its totient is φ = 7006640464704.

The previous prime is 20440044040181. The next prime is 20440044040237. The reversal of 20440044040220 is 2204044004402.

It is a super-2 number, since 2×20440044040220² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20440044040220.

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 15 ways as a sum of consecutive naturals, for example, 13602704 + ... + 15030423.

It is an arithmetic number, because the mean of its divisors is an integer number (1022202669600).

Almost surely, 2^{20440044040220} is an apocalyptic number.

20440044040220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20440044040220 is an abundant number, since it is smaller than the sum of its proper divisors (28625684100580).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20440044040220 is a wasteful number, since it uses less digits than its factorization.

20440044040220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28638242 (or 28638240 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 26.

Adding to 20440044040220 its reverse (2204044004402), we get a palindrome (22644088044622).

The spelling of 20440044040220 in words is "twenty trillion, four hundred forty billion, forty-four million, forty thousand, two hundred twenty".