327996640 has 48 divisors (see below), whose sum is σ = 820480752. Its totient is φ = 123480064.

The previous prime is 327996637. The next prime is 327996649. The reversal of 327996640 is 46699723.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (327996649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57574 + ... + 63013.

It is an arithmetic number, because the mean of its divisors is an integer number (17093349).

Almost surely, 2^327996640 is an apocalyptic number.

It is an amenable number.

327996640 is an abundant number, since it is smaller than the sum of its proper divisors (492484112).

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

327996640 is a wasteful number, since it uses less digits than its factorization.

327996640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120619 (or 120611 counting only the distinct ones).

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 327996640 is about 18110.6775135554. The cubic root of 327996640 is about 689.6410931884.

The spelling of 327996640 in words is "three hundred twenty-seven million, nine hundred ninety-six thousand, six hundred forty".