326880 has 72 divisors (see below), whose sum is σ = 1120392. Its totient is φ = 86784.

The previous prime is 326873. The next prime is 326881. The reversal of 326880 is 88623.

It is a tau number, because it is divible by the number of its divisors (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326881) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1327 + ... + 1553.

It is an arithmetic number, because the mean of its divisors is an integer number (15561).

2³²⁶⁸⁸⁰ is an apocalyptic number.

326880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (560196).

326880 is an abundant number, since it is smaller than the sum of its proper divisors (793512).

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

326880 is a wasteful number, since it uses less digits than its factorization.

326880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 237 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 326880 is about 571.7342039794. The cubic root of 326880 is about 68.8857592905.

The spelling of 326880 in words is "three hundred twenty-six thousand, eight hundred eighty".