1444020320242 has 4 divisors (see below), whose sum is σ = 2166030480366. Its totient is φ = 722010160120.

The previous prime is 1444020320213. The next prime is 1444020320293. The reversal of 1444020320242 is 2420230204441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 765556751521 + 678463568721 = 874961^2 + 823689^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1444020320242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 361005080059 + ... + 361005080062.

Almost surely, 2^{1444020320242} is an apocalyptic number.

1444020320242 is a deficient number, since it is larger than the sum of its proper divisors (722010160124).

1444020320242 is an equidigital number, since it uses as much as digits as its factorization.

1444020320242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722010160123.

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

Adding to 1444020320242 its reverse (2420230204441), we get a palindrome (3864250524683).

The spelling of 1444020320242 in words is "one trillion, four hundred forty-four billion, twenty million, three hundred twenty thousand, two hundred forty-two".