1328617716 has 96 divisors (see below), whose sum is σ = 3344302080. Its totient is φ = 409584000.

The previous prime is 1328617699. The next prime is 1328617723. The reversal of 1328617716 is 6177168231.

Its product of digits (84672) is a multiple of the sum of its prime divisors (1323).

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, 1153741 + ... + 1154891.

It is an arithmetic number, because the mean of its divisors is an integer number (34836480).

Almost surely, 2^1328617716 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 1328617716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1672151040).

1328617716 is an abundant number, since it is smaller than the sum of its proper divisors (2015684364).

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

1328617716 is a wasteful number, since it uses less digits than its factorization.

1328617716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1325 (or 1323 counting only the distinct ones).

The product of its digits is 84672, while the sum is 42.

The square root of 1328617716 is about 36450.2087236822. The cubic root of 1328617716 is about 1099.3433314817.

The spelling of 1328617716 in words is "one billion, three hundred twenty-eight million, six hundred seventeen thousand, seven hundred sixteen".