328637322 has 48 divisors (see below), whose sum is σ = 769318368. Its totient is φ = 100789920.

The previous prime is 328637321. The next prime is 328637327. The reversal of 328637322 is 223736823.

It is a happy number.

328637322 is a `hidden beast` number, since 3 + 286 + 373 + 2 + 2 = 666.

It is a super-2 number, since 2×328637322² = 216004978822663368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (328637321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 75333 + ... + 79575.

It is an arithmetic number, because the mean of its divisors is an integer number (16027466).

Almost surely, 2^328637322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 328637322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (384659184).

328637322 is an abundant number, since it is smaller than the sum of its proper divisors (440681046).

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

328637322 is a wasteful number, since it uses less digits than its factorization.

328637322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4595 (or 4592 counting only the distinct ones).

The product of its digits is 72576, while the sum is 36.

The square root of 328637322 is about 18128.3568477675. The cubic root of 328637322 is about 690.0898307745.

The spelling of 328637322 in words is "three hundred twenty-eight million, six hundred thirty-seven thousand, three hundred twenty-two".