1328444168 has 16 divisors (see below), whose sum is σ = 2500028160. Its totient is φ = 661770000.

The previous prime is 1328444137. The next prime is 1328444191. The reversal of 1328444168 is 8614448231.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 304208 + ... + 308543.

It is an arithmetic number, because the mean of its divisors is an integer number (156251760).

Almost surely, 2^1328444168 is an apocalyptic number.

It is an amenable number.

1328444168 is a deficient number, since it is larger than the sum of its proper divisors (1171583992).

1328444168 is a wasteful number, since it uses less digits than its factorization.

1328444168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613028 (or 613024 counting only the distinct ones).

The product of its digits is 147456, while the sum is 41.

The square root of 1328444168 is about 36447.8280285671. The cubic root of 1328444168 is about 1099.2954628982.

The spelling of 1328444168 in words is "one billion, three hundred twenty-eight million, four hundred forty-four thousand, one hundred sixty-eight".