326128 has 40 divisors (see below), whose sum is σ = 736560. Its totient is φ = 138240.

The previous prime is 326119. The next prime is 326141. The reversal of 326128 is 821623.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 326099 and 326108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2938 + ... + 3046.

It is an arithmetic number, because the mean of its divisors is an integer number (18414).

2³²⁶¹²⁸ 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 326128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (368280).

326128 is an abundant number, since it is smaller than the sum of its proper divisors (410432).

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

326128 is a wasteful number, since it uses less digits than its factorization.

326128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145 (or 139 counting only the distinct ones).

The product of its digits is 576, while the sum is 22.

The square root of 326128 is about 571.0761770552. The cubic root of 326128 is about 68.8328939515.

It can be divided in two parts, 326 and 128, that added together give a palindrome (454).

The spelling of 326128 in words is "three hundred twenty-six thousand, one hundred twenty-eight".