320322056 has 8 divisors (see below), whose sum is σ = 600603870. Its totient is φ = 160161024.

The previous prime is 320322047. The next prime is 320322073. The reversal of 320322056 is 650223023.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 212868100 + 107453956 = 14590^2 + 10366^2 .

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 20020121 + ... + 20020136.

Almost surely, 2^320322056 is an apocalyptic number.

It is an amenable number.

320322056 is a deficient number, since it is larger than the sum of its proper divisors (280281814).

320322056 is a wasteful number, since it uses less digits than its factorization.

320322056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40040263 (or 40040259 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 320322056 is about 17897.5432951006. The cubic root of 320322056 is about 684.2197634073.

Adding to 320322056 its reverse (650223023), we get a palindrome (970545079).

The spelling of 320322056 in words is "three hundred twenty million, three hundred twenty-two thousand, fifty-six".