1328196672 has 504 divisors, whose sum is σ = 4742992800. Its totient is φ = 352788480.

The previous prime is 1328196631. The next prime is 1328196673. The reversal of 1328196672 is 2766918231.

It is not an unprimeable number, because it can be changed into a prime (1328196673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 22511779 + ... + 22511837.

It is an arithmetic number, because the mean of its divisors is an integer number (9410700).

Almost surely, 2^1328196672 is an apocalyptic number.

1328196672 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1328196672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2371496400).

1328196672 is an abundant number, since it is smaller than the sum of its proper divisors (3414796128).

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

1328196672 is a wasteful number, since it uses less digits than its factorization.

1328196672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 111 counting only the distinct ones).

The product of its digits is 217728, while the sum is 45.

The square root of 1328196672 is about 36444.4326612447. The cubic root of 1328196672 is about 1099.2271905200.

The spelling of 1328196672 in words is "one billion, three hundred twenty-eight million, one hundred ninety-six thousand, six hundred seventy-two".