326730880 has 64 divisors (see below), whose sum is σ = 892687680. Its totient is φ = 112020480.

The previous prime is 326730863. The next prime is 326730919. The reversal of 326730880 is 88037623.

It is a tau number, because it is divible by the number of its divisors (64).

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 7 ways as a sum of consecutive naturals, for example, 31986 + ... + 40945.

It is an arithmetic number, because the mean of its divisors is an integer number (13948245).

Almost surely, 2^326730880 is an apocalyptic number.

It is an amenable number.

326730880 is an abundant number, since it is smaller than the sum of its proper divisors (565956800).

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

326730880 is an equidigital number, since it uses as much as digits as its factorization.

326730880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72957 (or 72945 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 326730880 is about 18075.6986033735. The cubic root of 326730880 is about 688.7528265601.

The spelling of 326730880 in words is "three hundred twenty-six million, seven hundred thirty thousand, eight hundred eighty".