2042442020242 has 16 divisors (see below), whose sum is σ = 3299426665920. Its totient is φ = 942637762512.

The previous prime is 2042442020161. The next prime is 2042442020273. The reversal of 2042442020242 is 2420202442402.

It is a self number, because there is not a number n which added to its sum of digits gives 2042442020242.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 245088 + ... + 2035915.

It is an arithmetic number, because the mean of its divisors is an integer number (206214166620).

Almost surely, 2^{2042442020242} is an apocalyptic number.

2042442020242 is a deficient number, since it is larger than the sum of its proper divisors (1256984645678).

2042442020242 is a wasteful number, since it uses less digits than its factorization.

2042442020242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315457.

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 2042442020242 its reverse (2420202442402), we get a palindrome (4462644462644).

The spelling of 2042442020242 in words is "two trillion, forty-two billion, four hundred forty-two million, twenty thousand, two hundred forty-two".