444242223140 has 24 divisors (see below), whose sum is σ = 933406829880. Its totient is φ = 177602001408.

The previous prime is 444242223133. The next prime is 444242223221. The reversal of 444242223140 is 41322242444.

It can be written as a sum of positive squares in 4 ways, for example, as 483736036 + 443758487104 = 21994^2 + 666152^2 .

It is a junction number, because it is equal to n+sod(n) for n = 444242223097 and 444242223106.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 5892095 + ... + 5967014.

It is an arithmetic number, because the mean of its divisors is an integer number (38891951245).

Almost surely, 2^444242223140 is an apocalyptic number.

It is an amenable number.

444242223140 is an abundant number, since it is smaller than the sum of its proper divisors (489164606740).

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

444242223140 is a wasteful number, since it uses less digits than its factorization.

444242223140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11860991 (or 11860989 counting only the distinct ones).

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

Adding to 444242223140 its reverse (41322242444), we get a palindrome (485564465584).

The spelling of 444242223140 in words is "four hundred forty-four billion, two hundred forty-two million, two hundred twenty-three thousand, one hundred forty".