328105140 has 96 divisors (see below), whose sum is σ = 1005129216. Its totient is φ = 79309440.

The previous prime is 328105133. The next prime is 328105157. The reversal of 328105140 is 41501823.

It is a self number, because there is not a number n which added to its sum of digits gives 328105140.

It is a congruent number.

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, 371139 + ... + 372021.

It is an arithmetic number, because the mean of its divisors is an integer number (10470096).

Almost surely, 2^328105140 is an apocalyptic number.

328105140 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 328105140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (502564608).

328105140 is an abundant number, since it is smaller than the sum of its proper divisors (677024076).

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

328105140 is a wasteful number, since it uses less digits than its factorization.

328105140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1469 (or 1467 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 328105140 is about 18113.6727363613. The cubic root of 328105140 is about 689.7171283265.

Adding to 328105140 its reverse (41501823), we get a palindrome (369606963).

It can be divided in two parts, 32810 and 5140, that added together give a triangular number (37950 = T₂₇₅).

The spelling of 328105140 in words is "three hundred twenty-eight million, one hundred five thousand, one hundred forty".