442444201340 has 24 divisors (see below), whose sum is σ = 944880839280. Its totient is φ = 173978058368.

The previous prime is 442444201327. The next prime is 442444201351. The reversal of 442444201340 is 43102444244.

It is a junction number, because it is equal to n+sod(n) for n = 442444201297 and 442444201306.

It is a congruent number.

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, 187475177 + ... + 187477536.

It is an arithmetic number, because the mean of its divisors is an integer number (39370034970).

Almost surely, 2^442444201340 is an apocalyptic number.

It is an amenable number.

442444201340 is an abundant number, since it is smaller than the sum of its proper divisors (502436637940).

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

442444201340 is a wasteful number, since it uses less digits than its factorization.

442444201340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374952781 (or 374952779 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 442444201340 its reverse (43102444244), we get a palindrome (485546645584).

The spelling of 442444201340 in words is "four hundred forty-two billion, four hundred forty-four million, two hundred one thousand, three hundred forty".