320530608 has 120 divisors (see below), whose sum is σ = 979451200. Its totient is φ = 101196864.

The previous prime is 320530577. The next prime is 320530619. The reversal of 320530608 is 806035023.

320530608 is a `hidden beast` number, since 3 + 2 + 0 + 53 + 0 + 608 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 23 ways as a sum of consecutive naturals, for example, 71703 + ... + 76041.

Almost surely, 2^320530608 is an apocalyptic number.

320530608 is a gapful number since it is divisible by the number (38) 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 320530608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (489725600).

320530608 is an abundant number, since it is smaller than the sum of its proper divisors (658920592).

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

320530608 is a wasteful number, since it uses less digits than its factorization.

320530608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4381 (or 4363 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

The square root of 320530608 is about 17903.3686215751. The cubic root of 320530608 is about 684.3682227890.

The spelling of 320530608 in words is "three hundred twenty million, five hundred thirty thousand, six hundred eight".