320140330 has 16 divisors (see below), whose sum is σ = 580792320. Its totient is φ = 127047312.

The previous prime is 320140321. The next prime is 320140333. The reversal of 320140330 is 33041023.

It is a super-3 number, since 3×320140330³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (320140333) 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, 124770 + ... + 127309.

It is an arithmetic number, because the mean of its divisors is an integer number (36299520).

Almost surely, 2^320140330 is an apocalyptic number.

320140330 is a deficient number, since it is larger than the sum of its proper divisors (260651990).

320140330 is a wasteful number, since it uses less digits than its factorization.

320140330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252213.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 320140330 is about 17892.4657328161. The cubic root of 320140330 is about 684.0903477775.

Adding to 320140330 its reverse (33041023), we get a palindrome (353181353).

The spelling of 320140330 in words is "three hundred twenty million, one hundred forty thousand, three hundred thirty".