844008928440 has 64 divisors (see below), whose sum is σ = 2600459955360. Its totient is φ = 218986099200.

The previous prime is 844008928351. The next prime is 844008928447. The reversal of 844008928440 is 44829800448.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (844008928447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95041611 + ... + 95050490.

Almost surely, 2^844008928440 is an apocalyptic number.

It is an amenable number.

844008928440 is an abundant number, since it is smaller than the sum of its proper divisors (1756451026920).

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

844008928440 is a wasteful number, since it uses less digits than its factorization.

844008928440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190092152 (or 190092148 counting only the distinct ones).

The product of its (nonzero) digits is 2359296, while the sum is 51.

The spelling of 844008928440 in words is "eight hundred forty-four billion, eight million, nine hundred twenty-eight thousand, four hundred forty".