326612328 has 128 divisors (see below), whose sum is σ = 981227520. Its totient is φ = 88577280.

The previous prime is 326612327. The next prime is 326612329. The reversal of 326612328 is 823216623.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (326612327) and next prime (326612329).

It is a super-2 number, since 2×326612328² = 213351225603159168, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (326612327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 699151 + ... + 699617.

It is an arithmetic number, because the mean of its divisors is an integer number (7665840).

Almost surely, 2^326612328 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 326612328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490613760).

326612328 is an abundant number, since it is smaller than the sum of its proper divisors (654615192).

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

326612328 is a wasteful number, since it uses less digits than its factorization.

326612328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687 (or 683 counting only the distinct ones).

The product of its digits is 20736, while the sum is 33.

The square root of 326612328 is about 18072.4189858469. The cubic root of 326612328 is about 688.6695134444.

The spelling of 326612328 in words is "three hundred twenty-six million, six hundred twelve thousand, three hundred twenty-eight".