320030304 has 96 divisors (see below), whose sum is σ = 970413696. Its totient is φ = 91269120.

The previous prime is 320030273. The next prime is 320030309. The reversal of 320030304 is 403030023.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320030309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9039 + ... + 26865.

It is an arithmetic number, because the mean of its divisors is an integer number (10108476).

Almost surely, 2^320030304 is an apocalyptic number.

320030304 is a gapful number since it is divisible by the number (34) 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 320030304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (485206848).

320030304 is an abundant number, since it is smaller than the sum of its proper divisors (650383392).

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

320030304 is a wasteful number, since it uses less digits than its factorization.

320030304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17868 (or 17860 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 15.

The square root of 320030304 is about 17889.3908224959. The cubic root of 320030304 is about 684.0119692854.

Adding to 320030304 its reverse (403030023), we get a palindrome (723060327).

The spelling of 320030304 in words is "three hundred twenty million, thirty thousand, three hundred four".