444404880440 has 16 divisors (see below), whose sum is σ = 999910981080. Its totient is φ = 177761952160.

The previous prime is 444404880349. The next prime is 444404880443. The reversal of 444404880440 is 44088404444.

It is a junction number, because it is equal to n+sod(n) for n = 444404880391 and 444404880400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (444404880443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555060966 + ... + 5555061045.

Almost surely, 2^444404880440 is an apocalyptic number.

444404880440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

444404880440 is an abundant number, since it is smaller than the sum of its proper divisors (555506100640).

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

444404880440 is a wasteful number, since it uses less digits than its factorization.

444404880440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11110122022 (or 11110122018 counting only the distinct ones).

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

The spelling of 444404880440 in words is "four hundred forty-four billion, four hundred four million, eight hundred eighty thousand, four hundred forty".