1444540142242 has 16 divisors (see below), whose sum is σ = 2228083308792. Its totient is φ = 701893261440.

The previous prime is 1444540142237. The next prime is 1444540142263. The reversal of 1444540142242 is 2422410454441.

It can be written as a sum of positive squares in 4 ways, for example, as 1435158476361 + 9381665881 = 1197981^2 + 96859^2 .

It is a Harshad number since it is a multiple of its sum of digits (37).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 11827683 + ... + 11949190.

Almost surely, 2^{1444540142242} is an apocalyptic number.

1444540142242 is a deficient number, since it is larger than the sum of its proper divisors (783543166550).

1444540142242 is a wasteful number, since it uses less digits than its factorization.

1444540142242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23777733.

The product of its (nonzero) digits is 163840, while the sum is 37.

Adding to 1444540142242 its reverse (2422410454441), we get a palindrome (3866950596683).

The spelling of 1444540142242 in words is "one trillion, four hundred forty-four billion, five hundred forty million, one hundred forty-two thousand, two hundred forty-two".