328664896 has 56 divisors (see below), whose sum is σ = 753831360. Its totient is φ = 139256832.

The previous prime is 328664837. The next prime is 328664929. The reversal of 328664896 is 698466823.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×328664896² = 216041227725381632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35751 + ... + 43993.

Almost surely, 2^328664896 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 328664896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (376915680).

328664896 is an abundant number, since it is smaller than the sum of its proper divisors (425166464).

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

328664896 is an equidigital number, since it uses as much as digits as its factorization.

328664896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8351 (or 8341 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The square root of 328664896 is about 18129.1173530318. The cubic root of 328664896 is about 690.1091306770.

The spelling of 328664896 in words is "three hundred twenty-eight million, six hundred sixty-four thousand, eight hundred ninety-six".