326663442 has 128 divisors (see below), whose sum is σ = 861511680. Its totient is φ = 90944208.

The previous prime is 326663429. The next prime is 326663507. The reversal of 326663442 is 244366623.

It is a junction number, because it is equal to n+sod(n) for n = 326663397 and 326663406.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1438933 + ... + 1439159.

It is an arithmetic number, because the mean of its divisors is an integer number (6730560).

Almost surely, 2^326663442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326663442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (430755840).

326663442 is an abundant number, since it is smaller than the sum of its proper divisors (534848238).

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

326663442 is an equidigital number, since it uses as much as digits as its factorization.

326663442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304 (or 286 counting only the distinct ones).

The product of its digits is 124416, while the sum is 36.

The square root of 326663442 is about 18073.8330743647. The cubic root of 326663442 is about 688.7054365806.

The spelling of 326663442 in words is "three hundred twenty-six million, six hundred sixty-three thousand, four hundred forty-two".