320649596 has 18 divisors (see below), whose sum is σ = 565394928. Its totient is φ = 159117280.

The previous prime is 320649587. The next prime is 320649599. The reversal of 320649596 is 695946023.

320649596 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320649599) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72941 + ... + 77211.

Almost surely, 2^320649596 is an apocalyptic number.

It is an amenable number.

320649596 is a deficient number, since it is larger than the sum of its proper divisors (244745332).

320649596 is a wasteful number, since it uses less digits than its factorization.

320649596 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4549 (or 4410 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 320649596 is about 17906.6913750140. The cubic root of 320649596 is about 684.4528964829.

The spelling of 320649596 in words is "three hundred twenty million, six hundred forty-nine thousand, five hundred ninety-six".