320330232 has 48 divisors (see below), whose sum is σ = 868388040. Its totient is φ = 106675008.

The previous prime is 320330209. The next prime is 320330233. The reversal of 320330232 is 232033023.

320330232 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×320330232² = 205222915066347648, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320330233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136138 + ... + 138470.

Almost surely, 2^320330232 is an apocalyptic number.

It is an amenable number.

320330232 is an abundant number, since it is smaller than the sum of its proper divisors (548057808).

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

320330232 is a wasteful number, since it uses less digits than its factorization.

320330232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4252 (or 4245 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 18.

The square root of 320330232 is about 17897.7717048799. The cubic root of 320330232 is about 684.2255847706.

Adding to 320330232 its reverse (232033023), we get a palindrome (552363255).

It can be divided in two parts, 32033023 and 2, that multiplied together give a palindrome (64066046).

The spelling of 320330232 in words is "three hundred twenty million, three hundred thirty thousand, two hundred thirty-two".