330728616 has 64 divisors (see below), whose sum is σ = 932443200. Its totient is φ = 108592704.

The previous prime is 330728599. The next prime is 330728621. The reversal of 330728616 is 616827033.

It is a happy number.

330728616 is a `hidden beast` number, since 3 + 30 + 7 + 2 + 8 + 616 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 3046 + ... + 25898.

It is an arithmetic number, because the mean of its divisors is an integer number (14569425).

Almost surely, 2^330728616 is an apocalyptic number.

330728616 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 330728616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (466221600).

330728616 is an abundant number, since it is smaller than the sum of its proper divisors (601714584).

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

330728616 is a wasteful number, since it uses less digits than its factorization.

330728616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22935 (or 22925 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 330728616 is about 18185.9455624391. The cubic root of 330728616 is about 691.5505395466.

The spelling of 330728616 in words is "three hundred thirty million, seven hundred twenty-eight thousand, six hundred sixteen".