1328709468 has 72 divisors (see below), whose sum is σ = 3203401600. Its totient is φ = 428630400.

The previous prime is 1328709461. The next prime is 1328709491. The reversal of 1328709468 is 8649078231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328709461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4014063 + ... + 4014393.

Almost surely, 2^1328709468 is an apocalyptic number.

It is an amenable number.

1328709468 is an abundant number, since it is smaller than the sum of its proper divisors (1874692132).

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

1328709468 is a wasteful number, since it uses less digits than its factorization.

1328709468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 576 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 48.

The square root of 1328709468 is about 36451.4672955699. The cubic root of 1328709468 is about 1099.3686371374.

The spelling of 1328709468 in words is "one billion, three hundred twenty-eight million, seven hundred nine thousand, four hundred sixty-eight".