42442440244 has 12 divisors (see below), whose sum is σ = 78643345284. Its totient is φ = 19972913024.

The previous prime is 42442440211. The next prime is 42442440263. The reversal of 42442440244 is 44204424424.

It can be written as a sum of positive squares in 2 ways, for example, as 26982004644 + 15460435600 = 164262^2 + 124340^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

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 in 3 ways as a sum of consecutive naturals, for example, 312076699 + ... + 312076834.

It is an arithmetic number, because the mean of its divisors is an integer number (6553612107).

Almost surely, 2^42442440244 is an apocalyptic number.

It is an amenable number.

42442440244 is a deficient number, since it is larger than the sum of its proper divisors (36200905040).

42442440244 is a wasteful number, since it uses less digits than its factorization.

42442440244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 624153554 (or 624153552 counting only the distinct ones).

The product of its (nonzero) digits is 131072, while the sum is 34.

Adding to 42442440244 its reverse (44204424424), we get a palindrome (86646864668).

The spelling of 42442440244 in words is "forty-two billion, four hundred forty-two million, four hundred forty thousand, two hundred forty-four".