1320313944 has 16 divisors (see below), whose sum is σ = 3300784920. Its totient is φ = 440104640.

The previous prime is 1320313889. The next prime is 1320313949. The reversal of 1320313944 is 4493130231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1320313949) 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, 27506517 + ... + 27506564.

Almost surely, 2^1320313944 is an apocalyptic number.

It is an amenable number.

1320313944 is an abundant number, since it is smaller than the sum of its proper divisors (1980470976).

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

1320313944 is a wasteful number, since it uses less digits than its factorization.

1320313944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55013090 (or 55013086 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 30.

The square root of 1320313944 is about 36336.1245044102. The cubic root of 1320313944 is about 1097.0482693559.

The spelling of 1320313944 in words is "one billion, three hundred twenty million, three hundred thirteen thousand, nine hundred forty-four".