326981322 has 48 divisors (see below), whose sum is σ = 741817440. Its totient is φ = 103953696.

The previous prime is 326981309. The next prime is 326981377. The reversal of 326981322 is 223189623.

326981322 is a `hidden beast` number, since 326 + 9 + 8 + 1 + 322 = 666.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 39553 + ... + 47099.

It is an arithmetic number, because the mean of its divisors is an integer number (15454530).

Almost surely, 2^326981322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326981322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (370908720).

326981322 is an abundant number, since it is smaller than the sum of its proper divisors (414836118).

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

326981322 is a wasteful number, since it uses less digits than its factorization.

326981322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7667 (or 7664 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 326981322 is about 18082.6248647700. The cubic root of 326981322 is about 688.9287599172.

The spelling of 326981322 in words is "three hundred twenty-six million, nine hundred eighty-one thousand, three hundred twenty-two".