326978328 has 48 divisors (see below), whose sum is σ = 844725240. Its totient is φ = 105469440.

The previous prime is 326978317. The next prime is 326978329. The reversal of 326978328 is 823879623.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (326978329) 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, 15976 + ... + 30152.

Almost surely, 2^326978328 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 326978328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (422362620).

326978328 is an abundant number, since it is smaller than the sum of its proper divisors (517746912).

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

326978328 is a wasteful number, since it uses less digits than its factorization.

326978328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14248 (or 14213 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 326978328 is about 18082.5420779270. The cubic root of 326978328 is about 688.9266571886.

The spelling of 326978328 in words is "three hundred twenty-six million, nine hundred seventy-eight thousand, three hundred twenty-eight".