328321552 has 20 divisors (see below), whose sum is σ = 685055980. Its totient is φ = 151532928.

The previous prime is 328321549. The next prime is 328321571. The reversal of 328321552 is 255123823.

It can be written as a sum of positive squares in 2 ways, for example, as 64064016 + 264257536 = 8004^2 + 16256^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 789027 + ... + 789442.

It is an arithmetic number, because the mean of its divisors is an integer number (34252799).

Almost surely, 2^328321552 is an apocalyptic number.

It is an amenable number.

328321552 is an abundant number, since it is smaller than the sum of its proper divisors (356734428).

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

328321552 is a wasteful number, since it uses less digits than its factorization.

328321552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578490 (or 1578484 counting only the distinct ones).

The product of its digits is 14400, while the sum is 31.

The square root of 328321552 is about 18119.6454711454. The cubic root of 328321552 is about 689.8687364951.

The spelling of 328321552 in words is "three hundred twenty-eight million, three hundred twenty-one thousand, five hundred fifty-two".