20424424042244 has 6 divisors (see below), whose sum is σ = 35742742073934. Its totient is φ = 10212212021120.

The previous prime is 20424424042201. The next prime is 20424424042261. The reversal of 20424424042244 is 44224042442402.

It can be written as a sum of positive squares in only one way, i.e., 20191434406144 + 232989636100 = 4493488^2 + 482690^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20424424042198 and 20424424042207.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2553053005277 + ... + 2553053005284.

It is an arithmetic number, because the mean of its divisors is an integer number (5957123678989).

Almost surely, 2^{20424424042244} is an apocalyptic number.

It is an amenable number.

20424424042244 is a deficient number, since it is larger than the sum of its proper divisors (15318318031690).

20424424042244 is a wasteful number, since it uses less digits than its factorization.

20424424042244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5106106010565 (or 5106106010563 counting only the distinct ones).

The product of its (nonzero) digits is 524288, while the sum is 38.

Adding to 20424424042244 its reverse (44224042442402), we get a palindrome (64648466484646).

The spelling of 20424424042244 in words is "twenty trillion, four hundred twenty-four billion, four hundred twenty-four million, forty-two thousand, two hundred forty-four".