324404405 has 16 divisors (see below), whose sum is σ = 426108144. Its totient is φ = 235630080.

The previous prime is 324404363. The next prime is 324404413. The reversal of 324404405 is 504404423.

It can be written as a sum of positive squares in 8 ways, for example, as 190909489 + 133494916 = 13817^2 + 11554^2 .

It is a de Polignac number, because none of the positive numbers 2^k-324404405 is a prime.

It is a Duffinian number.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 36944 + ... + 44873.

It is an arithmetic number, because the mean of its divisors is an integer number (26631759).

Almost surely, 2^324404405 is an apocalyptic number.

It is an amenable number.

324404405 is a deficient number, since it is larger than the sum of its proper divisors (101703739).

324404405 is a wasteful number, since it uses less digits than its factorization.

324404405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81896.

The product of its (nonzero) digits is 7680, while the sum is 26.

The square root of 324404405 is about 18011.2299691054. The cubic root of 324404405 is about 687.1141848489.

Adding to 324404405 its reverse (504404423), we get a palindrome (828808828).

The spelling of 324404405 in words is "three hundred twenty-four million, four hundred four thousand, four hundred five".