20444223241 has 4 divisors (see below), whose sum is σ = 22016855812. Its totient is φ = 18871590672.

The previous prime is 20444223221. The next prime is 20444223271. The reversal of 20444223241 is 14232244402.

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 2926377216 + 17517846025 = 54096^2 + 132355^2 .

It is a cyclic number.

It is not a de Polignac number, because 20444223241 - 2¹³ = 20444215049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20444223221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786316266 + ... + 786316291.

It is an arithmetic number, because the mean of its divisors is an integer number (5504213953).

Almost surely, 2^20444223241 is an apocalyptic number.

It is an amenable number.

20444223241 is a deficient number, since it is larger than the sum of its proper divisors (1572632571).

20444223241 is a wasteful number, since it uses less digits than its factorization.

20444223241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572632570.

The product of its (nonzero) digits is 12288, while the sum is 28.

Adding to 20444223241 its reverse (14232244402), we get a palindrome (34676467643).

The spelling of 20444223241 in words is "twenty billion, four hundred forty-four million, two hundred twenty-three thousand, two hundred forty-one".