328353280 has 80 divisors (see below), whose sum is σ = 804323520. Its totient is φ = 128499712.

The previous prime is 328353239. The next prime is 328353287. The reversal of 328353280 is 82353823.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328353287) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118956 + ... + 121684.

It is an arithmetic number, because the mean of its divisors is an integer number (10054044).

Almost surely, 2^328353280 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 328353280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (402161760).

328353280 is an abundant number, since it is smaller than the sum of its proper divisors (475970240).

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

328353280 is an equidigital number, since it uses as much as digits as its factorization.

328353280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2799 (or 2783 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

The square root of 328353280 is about 18120.5209638134. The cubic root of 328353280 is about 689.8909580541.

The spelling of 328353280 in words is "three hundred twenty-eight million, three hundred fifty-three thousand, two hundred eighty".