444480408440 has 32 divisors (see below), whose sum is σ = 1003338539280. Its totient is φ = 177213030912.

The previous prime is 444480408439. The next prime is 444480408461. The reversal of 444480408440 is 44804084444.

It is a junction number, because it is equal to n+sod(n) for n = 444480408391 and 444480408400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18085457 + ... + 18110016.

Almost surely, 2^444480408440 is an apocalyptic number.

444480408440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444480408440 is an abundant number, since it is smaller than the sum of its proper divisors (558858130840).

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

444480408440 is a wasteful number, since it uses less digits than its factorization.

444480408440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36195791 (or 36195787 counting only the distinct ones).

The product of its (nonzero) digits is 1048576, while the sum is 44.

It can be divided in two parts, 4 and 44480408440, that added together give a palindrome (44480408444).

The spelling of 444480408440 in words is "four hundred forty-four billion, four hundred eighty million, four hundred eight thousand, four hundred forty".