327957640 has 96 divisors (see below), whose sum is σ = 779534280. Its totient is φ = 124121088.

The previous prime is 327957631. The next prime is 327957653. The reversal of 327957640 is 46759723.

It can be written as a sum of positive squares in 12 ways, for example, as 94051204 + 233906436 = 9698^2 + 15294^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2902224 + ... + 2902336.

Almost surely, 2^327957640 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 327957640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (389767140).

327957640 is an abundant number, since it is smaller than the sum of its proper divisors (451576640).

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

327957640 is a wasteful number, since it uses less digits than its factorization.

327957640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 210 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 43.

The square root of 327957640 is about 18109.6007686531. The cubic root of 327957640 is about 689.6137584890.

The spelling of 327957640 in words is "three hundred twenty-seven million, nine hundred fifty-seven thousand, six hundred forty".