4242442442442 has 16 divisors (see below), whose sum is σ = 8485010222112. Its totient is φ = 1414126591280.

The previous prime is 4242442442437. The next prime is 4242442442443. The reversal of 4242442442442 is 2442442442424.

It is a junction number, because it is equal to n+sod(n) for n = 4242442442394 and 4242442442403.

It is not an unprimeable number, because it can be changed into a prime (4242442442443) by changing a digit.

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, 4779468 + ... + 5597159.

It is an arithmetic number, because the mean of its divisors is an integer number (530313138882).

Almost surely, 2^{4242442442442} is an apocalyptic number.

4242442442442 is an abundant number, since it is smaller than the sum of its proper divisors (4242567779670).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4242442442442 is a wasteful number, since it uses less digits than its factorization.

4242442442442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10444773.

The product of its digits is 2097152, while the sum is 42.

Adding to 4242442442442 its reverse (2442442442424), we get a palindrome (6684884884866).

The spelling of 4242442442442 in words is "four trillion, two hundred forty-two billion, four hundred forty-two million, four hundred forty-two thousand, four hundred forty-two".