326641968 has 120 divisors (see below), whose sum is σ = 941511168. Its totient is φ = 105670656.

The previous prime is 326641949. The next prime is 326641969. The reversal of 326641968 is 869146623.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

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 (326641969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 969096 + ... + 969432.

Almost surely, 2^326641968 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 326641968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (470755584).

326641968 is an abundant number, since it is smaller than the sum of its proper divisors (614869200).

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

326641968 is a wasteful number, since it uses less digits than its factorization.

326641968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531 (or 522 counting only the distinct ones).

The product of its digits is 373248, while the sum is 45.

The square root of 326641968 is about 18073.2390013522. The cubic root of 326641968 is about 688.6903450187.

The spelling of 326641968 in words is "three hundred twenty-six million, six hundred forty-one thousand, nine hundred sixty-eight".