20444411242 has 32 divisors (see below), whose sum is σ = 33680869200. Its totient is φ = 9264073728.

The previous prime is 20444411219. The next prime is 20444411243. The reversal of 20444411242 is 24211444402.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 7007196681 + 13437214561 = 83709^2 + 115919^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20444411242.

It is not an unprimeable number, because it can be changed into a prime (20444411243) by changing a digit.

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, 339984 + ... + 395572.

Almost surely, 2^20444411242 is an apocalyptic number.

20444411242 is a deficient number, since it is larger than the sum of its proper divisors (13236457958).

20444411242 is a wasteful number, since it uses less digits than its factorization.

20444411242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56010.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 20444411242 its reverse (24211444402), we get a palindrome (44655855644).

The spelling of 20444411242 in words is "twenty billion, four hundred forty-four million, four hundred eleven thousand, two hundred forty-two".