504221404 has 6 divisors (see below), whose sum is σ = 882387464. Its totient is φ = 252110700.

The previous prime is 504221351. The next prime is 504221413. The reversal of 504221404 is 404122405.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63027672 + ... + 63027679.

Almost surely, 2^504221404 is an apocalyptic number.

It is an amenable number.

504221404 is a deficient number, since it is larger than the sum of its proper divisors (378166060).

504221404 is a wasteful number, since it uses less digits than its factorization.

504221404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126055355 (or 126055353 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 504221404 is about 22454.8748382172. The cubic root of 504221404 is about 795.9279561574.

Adding to 504221404 its reverse (404122405), we get a palindrome (908343809).

The spelling of 504221404 in words is "five hundred four million, two hundred twenty-one thousand, four hundred four".