1444021403142 has 16 divisors (see below), whose sum is σ = 2895785552880. Its totient is φ = 480050009952.

The previous prime is 1444021403089. The next prime is 1444021403147. The reversal of 1444021403142 is 2413041204441.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1444021403147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322612017 + ... + 322616492.

It is an arithmetic number, because the mean of its divisors is an integer number (180986597055).

Almost surely, 2^{1444021403142} is an apocalyptic number.

1444021403142 is an abundant number, since it is smaller than the sum of its proper divisors (1451764149738).

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

1444021403142 is a wasteful number, since it uses less digits than its factorization.

1444021403142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 645228887.

The product of its (nonzero) digits is 12288, while the sum is 30.

Adding to 1444021403142 its reverse (2413041204441), we get a palindrome (3857062607583).

The spelling of 1444021403142 in words is "one trillion, four hundred forty-four billion, twenty-one million, four hundred three thousand, one hundred forty-two".