324128128 has 48 divisors (see below), whose sum is σ = 668980260. Its totient is φ = 156423680.

The previous prime is 324128113. The next prime is 324128141. The reversal of 324128128 is 821821423.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 324128128.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 106143 + ... + 109153.

Almost surely, 2^324128128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 324128128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334490130).

324128128 is an abundant number, since it is smaller than the sum of its proper divisors (344852132).

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

324128128 is an equidigital number, since it uses as much as digits as its factorization.

324128128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3042 counting only the distinct ones).

The product of its digits is 6144, while the sum is 31.

The square root of 324128128 is about 18003.5587593120. The cubic root of 324128128 is about 686.9190706041.

The spelling of 324128128 in words is "three hundred twenty-four million, one hundred twenty-eight thousand, one hundred twenty-eight".