4042144140442 has 4 divisors (see below), whose sum is σ = 6063216210666. Its totient is φ = 2021072070220.

The previous prime is 4042144140421. The next prime is 4042144140451. The reversal of 4042144140442 is 2440414412404.

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., 3521135907961 + 521008232481 = 1876469^2 + 721809^2 .

It is a junction number, because it is equal to n+sod(n) for n = 4042144140398 and 4042144140407.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1010536035109 + ... + 1010536035112.

Almost surely, 2^{4042144140442} is an apocalyptic number.

4042144140442 is a deficient number, since it is larger than the sum of its proper divisors (2021072070224).

4042144140442 is a wasteful number, since it uses less digits than its factorization.

4042144140442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021072070223.

The product of its (nonzero) digits is 65536, while the sum is 34.

Adding to 4042144140442 its reverse (2440414412404), we get a palindrome (6482558552846).

The spelling of 4042144140442 in words is "four trillion, forty-two billion, one hundred forty-four million, one hundred forty thousand, four hundred forty-two".