1328802768 has 30 divisors (see below), whose sum is σ = 3718802594. Its totient is φ = 442934208.

The previous prime is 1328802757. The next prime is 1328802781. The reversal of 1328802768 is 8672088231.

It can be written as a sum of positive squares in only one way, i.e., 1228642704 + 100160064 = 35052^2 + 10008^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4613755 + ... + 4614042.

Almost surely, 2^1328802768 is an apocalyptic number.

1328802768 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1328802768 is an abundant number, since it is smaller than the sum of its proper divisors (2389999826).

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

1328802768 is a wasteful number, since it uses less digits than its factorization.

1328802768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9227811 (or 9227802 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 45.

The square root of 1328802768 is about 36452.7470569777. The cubic root of 1328802768 is about 1099.3943685446.

The spelling of 1328802768 in words is "one billion, three hundred twenty-eight million, eight hundred two thousand, seven hundred sixty-eight".