328709880 has 256 divisors, whose sum is σ = 1173312000. Its totient is φ = 81616896.

The previous prime is 328709873. The next prime is 328709891. The reversal of 328709880 is 88907823.

328709880 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×328709880² = 216100370419228800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1703064 + ... + 1703256.

It is an arithmetic number, because the mean of its divisors is an integer number (4583250).

Almost surely, 2^328709880 is an apocalyptic number.

328709880 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 328709880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (586656000).

328709880 is an abundant number, since it is smaller than the sum of its proper divisors (844602120).

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

328709880 is a wasteful number, since it uses less digits than its factorization.

328709880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 193536, while the sum is 45.

The square root of 328709880 is about 18130.3579666812. The cubic root of 328709880 is about 690.1406140646.

The spelling of 328709880 in words is "three hundred twenty-eight million, seven hundred nine thousand, eight hundred eighty".