328505250 has 64 divisors (see below), whose sum is σ = 863141760. Its totient is φ = 82987200.

The previous prime is 328505249. The next prime is 328505273. The reversal of 328505250 is 52505823.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 2724 + ... + 25776.

It is an arithmetic number, because the mean of its divisors is an integer number (13486590).

Almost surely, 2^328505250 is an apocalyptic number.

328505250 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 328505250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (431570880).

328505250 is an abundant number, since it is smaller than the sum of its proper divisors (534636510).

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

328505250 is a wasteful number, since it uses less digits than its factorization.

328505250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23092 (or 23082 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 328505250 is about 18124.7137908437. The cubic root of 328505250 is about 689.9973744912.

The spelling of 328505250 in words is "three hundred twenty-eight million, five hundred five thousand, two hundred fifty".