320534404 has 12 divisors (see below), whose sum is σ = 576095884. Its totient is φ = 155935584.

The previous prime is 320534393. The next prime is 320534413. The reversal of 320534404 is 404435023.

It can be written as a sum of positive squares in 2 ways, for example, as 132296004 + 188238400 = 11502^2 + 13720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1082739 + ... + 1083034.

Almost surely, 2^320534404 is an apocalyptic number.

It is an amenable number.

320534404 is a deficient number, since it is larger than the sum of its proper divisors (255561480).

320534404 is a wasteful number, since it uses less digits than its factorization.

320534404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2165814 (or 2165812 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 320534404 is about 17903.4746348300. The cubic root of 320534404 is about 684.3709244046.

Adding to 320534404 its reverse (404435023), we get a palindrome (724969427).

The spelling of 320534404 in words is "three hundred twenty million, five hundred thirty-four thousand, four hundred four".