332291328 has 72 divisors (see below), whose sum is σ = 896645568. Its totient is φ = 109228032.

The previous prime is 332291321. The next prime is 332291329. The reversal of 332291328 is 823192233.

It is a super-2 number, since 2×332291328² = 220835053328007168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332291321) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 53101 + ... + 59027.

Almost surely, 2^332291328 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 332291328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (448322784).

332291328 is an abundant number, since it is smaller than the sum of its proper divisors (564354240).

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

332291328 is an equidigital number, since it uses as much as digits as its factorization.

332291328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6019 (or 6005 counting only the distinct ones).

The product of its digits is 15552, while the sum is 33.

The square root of 332291328 is about 18228.8597558926. The cubic root of 332291328 is about 692.6380340603.

The spelling of 332291328 in words is "three hundred thirty-two million, two hundred ninety-one thousand, three hundred twenty-eight".