320104434 has 16 divisors (see below), whose sum is σ = 689455872. Its totient is φ = 98493648.

The previous prime is 320104399. The next prime is 320104439. The reversal of 320104434 is 434401023.

It is a self number, because there is not a number n which added to its sum of digits gives 320104434.

It is not an unprimeable number, because it can be changed into a prime (320104439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2051874 + ... + 2052029.

It is an arithmetic number, because the mean of its divisors is an integer number (43090992).

Almost surely, 2^320104434 is an apocalyptic number.

320104434 is an abundant number, since it is smaller than the sum of its proper divisors (369351438).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320104434 is a wasteful number, since it uses less digits than its factorization.

320104434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103921.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 320104434 is about 17891.4626009167. The cubic root of 320104434 is about 684.0647787560.

Adding to 320104434 its reverse (434401023), we get a palindrome (754505457).

The spelling of 320104434 in words is "three hundred twenty million, one hundred four thousand, four hundred thirty-four".