327346640 has 20 divisors (see below), whose sum is σ = 761081124. Its totient is φ = 130938624.

The previous prime is 327346637. The next prime is 327346651. The reversal of 327346640 is 46643723.

It can be written as a sum of positive squares in 2 ways, for example, as 72114064 + 255232576 = 8492^2 + 15976^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 327346640.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2045837 + ... + 2045996.

Almost surely, 2^327346640 is an apocalyptic number.

It is an amenable number.

327346640 is an abundant number, since it is smaller than the sum of its proper divisors (433734484).

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

327346640 is a wasteful number, since it uses less digits than its factorization.

327346640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091846 (or 4091840 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 35.

The square root of 327346640 is about 18092.7233992011. The cubic root of 327346640 is about 689.1852316577.

The spelling of 327346640 in words is "three hundred twenty-seven million, three hundred forty-six thousand, six hundred forty".