328203720 has 192 divisors, whose sum is σ = 1209499200. Its totient is φ = 76515840.

The previous prime is 328203713. The next prime is 328203737. The reversal of 328203720 is 27302823.

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, 87075 + ... + 90765.

It is an arithmetic number, because the mean of its divisors is an integer number (6299475).

Almost surely, 2^328203720 is an apocalyptic number.

328203720 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 328203720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (604749600).

328203720 is an abundant number, since it is smaller than the sum of its proper divisors (881295480).

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

328203720 is a wasteful number, since it uses less digits than its factorization.

328203720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3740 (or 3733 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 328203720 is about 18116.3936808626. The cubic root of 328203720 is about 689.7861971481.

The spelling of 328203720 in words is "three hundred twenty-eight million, two hundred three thousand, seven hundred twenty".