320542312 has 64 divisors (see below), whose sum is σ = 649958400. Its totient is φ = 147744000.

The previous prime is 320542301. The next prime is 320542333. The reversal of 320542312 is 213245023.

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 15 ways as a sum of consecutive naturals, for example, 1678137 + ... + 1678327.

It is an arithmetic number, because the mean of its divisors is an integer number (10155600).

Almost surely, 2^320542312 is an apocalyptic number.

It is an amenable number.

320542312 is an abundant number, since it is smaller than the sum of its proper divisors (329416088).

320542312 is a wasteful number, since it uses less digits than its factorization.

320542312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 458 (or 454 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 320542312 is about 17903.6954844524. The cubic root of 320542312 is about 684.3765524648.

Adding to 320542312 its reverse (213245023), we get a palindrome (533787335).

The spelling of 320542312 in words is "three hundred twenty million, five hundred forty-two thousand, three hundred twelve".