320675140 has 12 divisors (see below), whose sum is σ = 673417836. Its totient is φ = 128270048.

The previous prime is 320675119. The next prime is 320675171. The reversal of 320675140 is 41576023.

It can be written as a sum of positive squares in 2 ways, for example, as 222427396 + 98247744 = 14914^2 + 9912^2 .

It is a junction number, because it is equal to n+sod(n) for n = 320675099 and 320675108.

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 3 ways as a sum of consecutive naturals, for example, 8016859 + ... + 8016898.

It is an arithmetic number, because the mean of its divisors is an integer number (56118153).

Almost surely, 2^320675140 is an apocalyptic number.

It is an amenable number.

320675140 is an abundant number, since it is smaller than the sum of its proper divisors (352742696).

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

320675140 is a wasteful number, since it uses less digits than its factorization.

320675140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16033766 (or 16033764 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 320675140 is about 17907.4046137345. The cubic root of 320675140 is about 684.4710712555.

The spelling of 320675140 in words is "three hundred twenty million, six hundred seventy-five thousand, one hundred forty".