323128 has 24 divisors (see below), whose sum is σ = 658800. Its totient is φ = 148512.

The previous prime is 323123. The next prime is 323131. The reversal of 323128 is 821323.

It is a happy number.

323128 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 9 and base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1233 + ... + 1471.

It is an arithmetic number, because the mean of its divisors is an integer number (27450).

2³²³¹²⁸ 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 323128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (329400).

323128 is an abundant number, since it is smaller than the sum of its proper divisors (335672).

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

323128 is a wasteful number, since it uses less digits than its factorization.

323128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 254 counting only the distinct ones).

The product of its digits is 288, while the sum is 19.

The square root of 323128 is about 568.4434888360. The cubic root of 323128 is about 68.6211824756.

It can be divided in two parts, 32 and 3128, that added together give a triangular number (3160 = T₇₉).

The spelling of 323128 in words is "three hundred twenty-three thousand, one hundred twenty-eight".