327296640 has 128 divisors (see below), whose sum is σ = 1138173120. Its totient is φ = 79339520.

The previous prime is 327296633. The next prime is 327296657. The reversal of 327296640 is 46692723.

It is a tau number, because it is divible by the number of its divisors (128).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13372 + ... + 28868.

Almost surely, 2^327296640 is an apocalyptic number.

327296640 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 327296640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569086560).

327296640 is an abundant number, since it is smaller than the sum of its proper divisors (810876480).

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

327296640 is a wasteful number, since it uses less digits than its factorization.

327296640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15530 (or 15518 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 327296640 is about 18091.3415754609. The cubic root of 327296640 is about 689.1501403997.

The spelling of 327296640 in words is "three hundred twenty-seven million, two hundred ninety-six thousand, six hundred forty".