320140030 has 48 divisors (see below), whose sum is σ = 684645696. Its totient is φ = 107419200.

The previous prime is 320140001. The next prime is 320140033. The reversal of 320140030 is 30041023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320140033) 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 23 ways as a sum of consecutive naturals, for example, 16080 + ... + 29980.

It is an arithmetic number, because the mean of its divisors is an integer number (14263452).

Almost surely, 2^320140030 is an apocalyptic number.

320140030 is an abundant number, since it is smaller than the sum of its proper divisors (364505666).

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

320140030 is a wasteful number, since it uses less digits than its factorization.

320140030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13969 (or 13962 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 320140030 is about 17892.4573493973. The cubic root of 320140030 is about 684.0901340929.

Adding to 320140030 its reverse (30041023), we get a palindrome (350181053).

The spelling of 320140030 in words is "three hundred twenty million, one hundred forty thousand, thirty".