504630321 has 16 divisors (see below), whose sum is σ = 729894144. Its totient is φ = 308271744.

The previous prime is 504630319. The next prime is 504630341. The reversal of 504630321 is 123036405.

It is a happy number.

It is not a de Polignac number, because 504630321 - 2¹ = 504630319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 504630291 and 504630300.

It is not an unprimeable number, because it can be changed into a prime (504630341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41881 + ... + 52566.

It is an arithmetic number, because the mean of its divisors is an integer number (45618384).

Almost surely, 2^504630321 is an apocalyptic number.

It is an amenable number.

504630321 is a deficient number, since it is larger than the sum of its proper divisors (225263823).

504630321 is a wasteful number, since it uses less digits than its factorization.

504630321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94600.

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 504630321 is about 22463.9782986006. The cubic root of 504630321 is about 796.1430604254.

Adding to 504630321 its reverse (123036405), we get a palindrome (627666726).

The spelling of 504630321 in words is "five hundred four million, six hundred thirty thousand, three hundred twenty-one".