328591872 has 240 divisors, whose sum is σ = 1108179072. Its totient is φ = 91791360.

The previous prime is 328591867. The next prime is 328591873. The reversal of 328591872 is 278195823.

It is a happy number.

Its product of digits (241920) is a multiple of the sum of its prime divisors (240).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328591873) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1967533 + ... + 1967699.

Almost surely, 2^328591872 is an apocalyptic number.

328591872 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 328591872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (554089536).

328591872 is an abundant number, since it is smaller than the sum of its proper divisors (779587200).

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

328591872 is a wasteful number, since it uses less digits than its factorization.

328591872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259 (or 240 counting only the distinct ones).

The product of its digits is 241920, while the sum is 45.

The square root of 328591872 is about 18127.1032434860. The cubic root of 328591872 is about 690.0580165458.

The spelling of 328591872 in words is "three hundred twenty-eight million, five hundred ninety-one thousand, eight hundred seventy-two".