844448480440 has 32 divisors (see below), whose sum is σ = 1900523346480. Its totient is φ = 337687967232.

The previous prime is 844448480413. The next prime is 844448480471. The reversal of 844448480440 is 44084844448.

It is a super-2 number, since 2×844448480440² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

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, 2707302 + ... + 3003061.

Almost surely, 2^844448480440 is an apocalyptic number.

It is an amenable number.

844448480440 is an abundant number, since it is smaller than the sum of its proper divisors (1056074866040).

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

844448480440 is a wasteful number, since it uses less digits than its factorization.

844448480440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5714071 (or 5714067 counting only the distinct ones).

The product of its (nonzero) digits is 8388608, while the sum is 52.

The spelling of 844448480440 in words is "eight hundred forty-four billion, four hundred forty-eight million, four hundred eighty thousand, four hundred forty".