326816 has 24 divisors (see below), whose sum is σ = 735840. Its totient is φ = 139968.

The previous prime is 326779. The next prime is 326831. The reversal of 326816 is 618623.

It is an unprimeable number.

326816 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506 + ... + 953.

It is an arithmetic number, because the mean of its divisors is an integer number (30660).

326816 is a Friedman number, since it can be written as (32+6^6)*(8-1), using all its digits and the basic arithmetic operations.

2³²⁶⁸¹⁶ is an apocalyptic number.

It is an amenable number.

326816 is an abundant number, since it is smaller than the sum of its proper divisors (409024).

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

326816 is a wasteful number, since it uses less digits than its factorization.

326816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1476 (or 1468 counting only the distinct ones).

The product of its digits is 1728, while the sum is 26.

The square root of 326816 is about 571.6782311755. The cubic root of 326816 is about 68.8812632712.

The spelling of 326816 in words is "three hundred twenty-six thousand, eight hundred sixteen".