20041444440433 has 4 divisors (see below), whose sum is σ = 21583094012788. Its totient is φ = 18499794868080.

The previous prime is 20041444440389. The next prime is 20041444440487. The reversal of 20041444440433 is 33404444414002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9279291793249 + 10762152647184 = 3046193^2 + 3280572^2 .

It is a cyclic number.

It is not a de Polignac number, because 20041444440433 - 2³⁷ = 19904005486961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20041444440392 and 20041444440401.

It is not an unprimeable number, because it can be changed into a prime (20041444420433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 770824786158 + ... + 770824786183.

It is an arithmetic number, because the mean of its divisors is an integer number (5395773503197).

Almost surely, 2^{20041444440433} is an apocalyptic number.

It is an amenable number.

20041444440433 is a deficient number, since it is larger than the sum of its proper divisors (1541649572355).

20041444440433 is a wasteful number, since it uses less digits than its factorization.

20041444440433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1541649572354.

The product of its (nonzero) digits is 294912, while the sum is 37.

Adding to 20041444440433 its reverse (33404444414002), we get a palindrome (53445888854435).

The spelling of 20041444440433 in words is "twenty trillion, forty-one billion, four hundred forty-four million, four hundred forty thousand, four hundred thirty-three".