320104144 has 10 divisors (see below), whose sum is σ = 620201810. Its totient is φ = 160052064.

The previous prime is 320104093. The next prime is 320104151. The reversal of 320104144 is 441401023.

It can be written as a sum of positive squares in only one way, i.e., 253191744 + 66912400 = 15912^2 + 8180^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10003239 + ... + 10003270.

It is an arithmetic number, because the mean of its divisors is an integer number (62020181).

Almost surely, 2^320104144 is an apocalyptic number.

It is an amenable number.

320104144 is a deficient number, since it is larger than the sum of its proper divisors (300097666).

320104144 is a wasteful number, since it uses less digits than its factorization.

320104144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20006517 (or 20006511 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 320104144 is about 17891.4544964908. The cubic root of 320104144 is about 684.0645721787.

Adding to 320104144 its reverse (441401023), we get a palindrome (761505167).

The spelling of 320104144 in words is "three hundred twenty million, one hundred four thousand, one hundred forty-four".