444040404040 has 16 divisors (see below), whose sum is σ = 999090909180. Its totient is φ = 177616161600.

The previous prime is 444040404013. The next prime is 444040404089. The reversal of 444040404040 is 40404040444.

It can be written as a sum of positive squares in 2 ways, for example, as 418332129796 + 25708274244 = 646786^2 + 160338^2 .

444040404040 is a modest number, since divided by 40404040 gives 4440 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5550505011 + ... + 5550505090.

Almost surely, 2^444040404040 is an apocalyptic number.

444040404040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444040404040 is an abundant number, since it is smaller than the sum of its proper divisors (555050505140).

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

444040404040 is a wasteful number, since it uses less digits than its factorization.

444040404040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11101010112 (or 11101010108 counting only the distinct ones).

The product of its (nonzero) digits is 16384, while the sum is 28.

Adding to 444040404040 its reverse (40404040444), we get a palindrome (484444444484).

It can be divided in two parts, 4 and 44040404040, that added together give a palindrome (44040404044).

The spelling of 444040404040 in words is "four hundred forty-four billion, forty million, four hundred four thousand, forty".