20144442344 has 16 divisors (see below), whose sum is σ = 40676278020. Its totient is φ = 9297434880.

The previous prime is 20144442343. The next prime is 20144442391. The reversal of 20144442344 is 44324444102.

It can be written as a sum of positive squares in 2 ways, for example, as 18618602500 + 1525839844 = 136450^2 + 39062^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20144442344.

It is not an unprimeable number, because it can be changed into a prime (20144442343) 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, 96848177 + ... + 96848384.

Almost surely, 2^20144442344 is an apocalyptic number.

It is an amenable number.

20144442344 is an abundant number, since it is smaller than the sum of its proper divisors (20531835676).

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

20144442344 is a wasteful number, since it uses less digits than its factorization.

20144442344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193696580 (or 193696576 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 20144442344 its reverse (44324444102), we get a palindrome (64468886446).

The spelling of 20144442344 in words is "twenty billion, one hundred forty-four million, four hundred forty-two thousand, three hundred forty-four".