326355216 has 80 divisors (see below), whose sum is σ = 939368448. Its totient is φ = 96784000.

The previous prime is 326355193. The next prime is 326355233. The reversal of 326355216 is 612553623.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18241 + ... + 31391.

Almost surely, 2^326355216 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 326355216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469684224).

326355216 is an abundant number, since it is smaller than the sum of its proper divisors (613013232).

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

326355216 is a wasteful number, since it uses less digits than its factorization.

326355216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13220 (or 13214 counting only the distinct ones).

The product of its digits is 32400, while the sum is 33.

The square root of 326355216 is about 18065.3042044689. The cubic root of 326355216 is about 688.4887571742.

The spelling of 326355216 in words is "three hundred twenty-six million, three hundred fifty-five thousand, two hundred sixteen".