1243444310442 has 48 divisors (see below), whose sum is σ = 2734904016000. Its totient is φ = 408234071232.

The previous prime is 1243444310393. The next prime is 1243444310447. The reversal of 1243444310442 is 2440134443421.

1243444310442 is a `hidden beast` number, since 124 + 3 + 44 + 43 + 10 + 442 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 1243444310397 and 1243444310406.

It is not an unprimeable number, because it can be changed into a prime (1243444310447) by changing a digit.

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 in 23 ways as a sum of consecutive naturals, for example, 487392 + ... + 1650587.

It is an arithmetic number, because the mean of its divisors is an integer number (56977167000).

Almost surely, 2^{1243444310442} is an apocalyptic number.

1243444310442 is an abundant number, since it is smaller than the sum of its proper divisors (1491459705558).

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

1243444310442 is a wasteful number, since it uses less digits than its factorization.

1243444310442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2138475 (or 2138472 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 36.

Adding to 1243444310442 its reverse (2440134443421), we get a palindrome (3683578753863).

The spelling of 1243444310442 in words is "one trillion, two hundred forty-three billion, four hundred forty-four million, three hundred ten thousand, four hundred forty-two".