500340321 has 80 divisors (see below), whose sum is σ = 854426496. Its totient is φ = 289453824.

The previous prime is 500340301. The next prime is 500340329. The reversal of 500340321 is 123043005.

500340321 is a `hidden beast` number, since 5 + 0 + 0 + 340 + 321 = 666.

It is not a de Polignac number, because 500340321 - 2⁶ = 500340257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 500340294 and 500340303.

It is not an unprimeable number, because it can be changed into a prime (500340329) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 1767846 + ... + 1768128.

Almost surely, 2^500340321 is an apocalyptic number.

It is an amenable number.

500340321 is a deficient number, since it is larger than the sum of its proper divisors (354086175).

500340321 is a wasteful number, since it uses less digits than its factorization.

500340321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 500340321 is about 22368.2882894512. The cubic root of 500340321 is about 793.8805604484.

Adding to 500340321 its reverse (123043005), we get a palindrome (623383326).

The spelling of 500340321 in words is "five hundred million, three hundred forty thousand, three hundred twenty-one".