1328327628 has 24 divisors (see below), whose sum is σ = 3127869360. Its totient is φ = 438713280.

The previous prime is 1328327621. The next prime is 1328327633. The reversal of 1328327628 is 8267238231.

It is a self number, because there is not a number n which added to its sum of digits gives 1328327628.

It is not an unprimeable number, because it can be changed into a prime (1328327621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 506463 + ... + 509078.

It is an arithmetic number, because the mean of its divisors is an integer number (130327890).

Almost surely, 2^1328327628 is an apocalyptic number.

It is an amenable number.

1328327628 is an abundant number, since it is smaller than the sum of its proper divisors (1799541732).

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

1328327628 is a wasteful number, since it uses less digits than its factorization.

1328327628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015657 (or 1015655 counting only the distinct ones).

The product of its digits is 193536, while the sum is 42.

The square root of 1328327628 is about 36446.2292699807. The cubic root of 1328327628 is about 1099.2633161100.

The spelling of 1328327628 in words is "one billion, three hundred twenty-eight million, three hundred twenty-seven thousand, six hundred twenty-eight".