327890640 has 240 divisors, whose sum is σ = 1277668224. Its totient is φ = 68090880.

The previous prime is 327890597. The next prime is 327890663. The reversal of 327890640 is 46098723.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 202474 + ... + 204086.

Almost surely, 2^327890640 is an apocalyptic number.

327890640 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 327890640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (638834112).

327890640 is an abundant number, since it is smaller than the sum of its proper divisors (949777584).

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

327890640 is a wasteful number, since it uses less digits than its factorization.

327890640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1658 (or 1641 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 327890640 is about 18107.7508266488. The cubic root of 327890640 is about 689.5667938174.

The spelling of 327890640 in words is "three hundred twenty-seven million, eight hundred ninety thousand, six hundred forty".