1044321394928 has 160 divisors (see below), whose sum is σ = 2356319662080. Its totient is φ = 439171891200.

The previous prime is 1044321394889. The next prime is 1044321394933. The reversal of 1044321394928 is 8294931234401.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 701356808 + ... + 701358296.

It is an arithmetic number, because the mean of its divisors is an integer number (14726997888).

Almost surely, 2^{1044321394928} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1044321394928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1178159831040).

1044321394928 is an abundant number, since it is smaller than the sum of its proper divisors (1311998267152).

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

1044321394928 is a wasteful number, since it uses less digits than its factorization.

1044321394928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135 (or 2129 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 50.

The spelling of 1044321394928 in words is "one trillion, forty-four billion, three hundred twenty-one million, three hundred ninety-four thousand, nine hundred twenty-eight".