328619840 has 112 divisors (see below), whose sum is σ = 816766464. Its totient is φ = 125798400.

The previous prime is 328619831. The next prime is 328619869. The reversal of 328619840 is 48916823.

328619840 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 15 ways as a sum of consecutive naturals, for example, 1557335 + ... + 1557545.

Almost surely, 2^328619840 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 328619840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (408383232).

328619840 is an abundant number, since it is smaller than the sum of its proper divisors (488146624).

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

328619840 is a wasteful number, since it uses less digits than its factorization.

328619840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416 (or 406 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 328619840 is about 18127.8746685870. The cubic root of 328619840 is about 690.0775940184.

The spelling of 328619840 in words is "three hundred twenty-eight million, six hundred nineteen thousand, eight hundred forty".