1242442412444 has 6 divisors (see below), whose sum is σ = 2174274221784. Its totient is φ = 621221206220.

The previous prime is 1242442412441. The next prime is 1242442412479. The reversal of 1242442412444 is 4442142442421.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1242442412398 and 1242442412407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242442412441) by changing a digit.

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, 155305301552 + ... + 155305301559.

It is an arithmetic number, because the mean of its divisors is an integer number (362379036964).

Almost surely, 2^{1242442412444} is an apocalyptic number.

It is an amenable number.

1242442412444 is a deficient number, since it is larger than the sum of its proper divisors (931831809340).

1242442412444 is a wasteful number, since it uses less digits than its factorization.

1242442412444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310610603115 (or 310610603113 counting only the distinct ones).

The product of its digits is 262144, while the sum is 38.

Adding to 1242442412444 its reverse (4442142442421), we get a palindrome (5684584854865).

The spelling of 1242442412444 in words is "one trillion, two hundred forty-two billion, four hundred forty-two million, four hundred twelve thousand, four hundred forty-four".