4042404144242 has 4 divisors (see below), whose sum is σ = 6063606216366. Its totient is φ = 2021202072120.

The previous prime is 4042404144199. The next prime is 4042404144253. The reversal of 4042404144242 is 2424414042404.

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., 3453684011281 + 588720132961 = 1858409^2 + 767281^2 .

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 as a sum of consecutive naturals, namely, 1010601036059 + ... + 1010601036062.

Almost surely, 2^{4042404144242} is an apocalyptic number.

4042404144242 is a deficient number, since it is larger than the sum of its proper divisors (2021202072124).

4042404144242 is a wasteful number, since it uses less digits than its factorization.

4042404144242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2021202072123.

The product of its (nonzero) digits is 131072, while the sum is 35.

Adding to 4042404144242 its reverse (2424414042404), we get a palindrome (6466818186646).

The spelling of 4042404144242 in words is "four trillion, forty-two billion, four hundred four million, one hundred forty-four thousand, two hundred forty-two".