326978344 has 64 divisors (see below), whose sum is σ = 767491200. Its totient is φ = 126873600.

The previous prime is 326978329. The next prime is 326978381. The reversal of 326978344 is 443879623.

It is a junction number, because it is equal to n+sod(n) for n = 326978294 and 326978303.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172152 + ... + 174040.

It is an arithmetic number, because the mean of its divisors is an integer number (11992050).

Almost surely, 2^326978344 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 326978344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (383745600).

326978344 is an abundant number, since it is smaller than the sum of its proper divisors (440512856).

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

326978344 is a wasteful number, since it uses less digits than its factorization.

326978344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2194 (or 2190 counting only the distinct ones).

The product of its digits is 870912, while the sum is 46.

The square root of 326978344 is about 18082.5425203427. The cubic root of 326978344 is about 688.9266684256.

It can be divided in two parts, 32697 and 8344, that added together give a triangular number (41041 = T₂₈₆).

The spelling of 326978344 in words is "three hundred twenty-six million, nine hundred seventy-eight thousand, three hundred forty-four".