320047516 has 6 divisors (see below), whose sum is σ = 560083160. Its totient is φ = 160023756.

The previous prime is 320047513. The next prime is 320047537. The reversal of 320047516 is 615740023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320047513) 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 as a sum of consecutive naturals, namely, 40005936 + ... + 40005943.

Almost surely, 2^320047516 is an apocalyptic number.

It is an amenable number.

320047516 is a deficient number, since it is larger than the sum of its proper divisors (240035644).

320047516 is a wasteful number, since it uses less digits than its factorization.

320047516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80011883 (or 80011881 counting only the distinct ones).

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

The square root of 320047516 is about 17889.8718832752. The cubic root of 320047516 is about 684.0242316689.

Adding to 320047516 its reverse (615740023), we get a palindrome (935787539).

The spelling of 320047516 in words is "three hundred twenty million, forty-seven thousand, five hundred sixteen".