1328718325 has 12 divisors (see below), whose sum is σ = 1797393888. Its totient is φ = 966340400.

The previous prime is 1328718289. The next prime is 1328718329. The reversal of 1328718325 is 5238178231.

It is a happy number.

It is not a de Polignac number, because 1328718325 - 2¹³ = 1328710133 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328718329) 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 11 ways as a sum of consecutive naturals, for example, 2415577 + ... + 2416126.

It is an arithmetic number, because the mean of its divisors is an integer number (149782824).

Almost surely, 2^1328718325 is an apocalyptic number.

It is an amenable number.

1328718325 is a deficient number, since it is larger than the sum of its proper divisors (468675563).

1328718325 is a wasteful number, since it uses less digits than its factorization.

1328718325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4831724 (or 4831719 counting only the distinct ones).

The product of its digits is 80640, while the sum is 40.

The square root of 1328718325 is about 36451.5887856757. The cubic root of 1328718325 is about 1099.3710798802.

The spelling of 1328718325 in words is "one billion, three hundred twenty-eight million, seven hundred eighteen thousand, three hundred twenty-five".