328428984 has 128 divisors (see below), whose sum is σ = 985824000. Its totient is φ = 90077184.

The previous prime is 328428959. The next prime is 328429019. The reversal of 328428984 is 489824823.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99147 + ... + 102405.

It is an arithmetic number, because the mean of its divisors is an integer number (7701750).

Almost surely, 2^328428984 is an apocalyptic number.

328428984 is a gapful number since it is divisible by the number (34) 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 328428984, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (492912000).

328428984 is an abundant number, since it is smaller than the sum of its proper divisors (657395016).

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

328428984 is a wasteful number, since it uses less digits than its factorization.

328428984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317 (or 3313 counting only the distinct ones).

The product of its digits is 884736, while the sum is 48.

The square root of 328428984 is about 18122.6097458396. The cubic root of 328428984 is about 689.9439736068.

The spelling of 328428984 in words is "three hundred twenty-eight million, four hundred twenty-eight thousand, nine hundred eighty-four".