504042321 has 8 divisors (see below), whose sum is σ = 672202240. Its totient is φ = 335955312.

The previous prime is 504042313. The next prime is 504042353. The reversal of 504042321 is 123240405.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 504042321 - 2³ = 504042313 is a prime.

It is a super-2 number, since 2×504042321² = 508117322718134082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (504042311) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 720 + ... + 31758.

It is an arithmetic number, because the mean of its divisors is an integer number (84025280).

Almost surely, 2^504042321 is an apocalyptic number.

It is an amenable number.

504042321 is a deficient number, since it is larger than the sum of its proper divisors (168159919).

504042321 is a wasteful number, since it uses less digits than its factorization.

504042321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36455.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 504042321 is about 22450.8868644426. The cubic root of 504042321 is about 795.8337157812.

Adding to 504042321 its reverse (123240405), we get a palindrome (627282726).

It can be divided in two parts, 50404 and 2321, that added together give a palindrome (52725).

The spelling of 504042321 in words is "five hundred four million, forty-two thousand, three hundred twenty-one".