144444444442 has 16 divisors (see below), whose sum is σ = 229929648192. Its totient is φ = 67820409280.

The previous prime is 144444444407. The next prime is 144444444449. The reversal of 144444444442 is 244444444441.

It is not an unprimeable number, because it can be changed into a prime (144444444449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4779934 + ... + 4810057.

It is an arithmetic number, because the mean of its divisors is an integer number (14370603012).

Almost surely, 2^144444444442 is an apocalyptic number.

144444444442 is a deficient number, since it is larger than the sum of its proper divisors (85485203750).

144444444442 is a wasteful number, since it uses less digits than its factorization.

144444444442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9590453.

The product of its digits is 2097152, while the sum is 43.

Adding to 144444444442 its reverse (244444444441), we get a palindrome (388888888883).

Subtracting 144444444442 from its reverse (244444444441), we obtain a palindrome (99999999999).

The spelling of 144444444442 in words is "one hundred forty-four billion, four hundred forty-four million, four hundred forty-four thousand, four hundred forty-two".