326849778 has 48 divisors (see below), whose sum is σ = 742996800. Its totient is φ = 103699680.

The previous prime is 326849759. The next prime is 326849791. The reversal of 326849778 is 877948623.

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, 32653 + ... + 41471.

It is an arithmetic number, because the mean of its divisors is an integer number (15479100).

Almost surely, 2^326849778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 326849778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (371498400).

326849778 is an abundant number, since it is smaller than the sum of its proper divisors (416147022).

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

326849778 is a wasteful number, since it uses less digits than its factorization.

326849778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8927 (or 8924 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 326849778 is about 18078.9871950837. The cubic root of 326849778 is about 688.8363625905.

The spelling of 326849778 in words is "three hundred twenty-six million, eight hundred forty-nine thousand, seven hundred seventy-eight".