328615872 has 168 divisors, whose sum is σ = 974585808. Its totient is φ = 97136640.

The previous prime is 328615853. The next prime is 328615879. The reversal of 328615872 is 278516823.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328615879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2398588 + ... + 2398724.

It is an arithmetic number, because the mean of its divisors is an integer number (5801106).

Almost surely, 2^328615872 is an apocalyptic number.

328615872 is a gapful number since it is divisible by the number (32) 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 328615872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (487292904).

328615872 is an abundant number, since it is smaller than the sum of its proper divisors (645969936).

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

328615872 is a wasteful number, since it uses less digits than its factorization.

328615872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227 (or 186 counting only the distinct ones).

The product of its digits is 161280, while the sum is 42.

The square root of 328615872 is about 18127.7652235459. The cubic root of 328615872 is about 690.0748165041.

The spelling of 328615872 in words is "three hundred twenty-eight million, six hundred fifteen thousand, eight hundred seventy-two".