504638438 has 8 divisors (see below), whose sum is σ = 801484632. Its totient is φ = 237476896.

The previous prime is 504638417. The next prime is 504638441. The reversal of 504638438 is 834836405.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 504638395 and 504638404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7421120 + ... + 7421187.

It is an arithmetic number, because the mean of its divisors is an integer number (100185579).

Almost surely, 2^504638438 is an apocalyptic number.

504638438 is a deficient number, since it is larger than the sum of its proper divisors (296846194).

504638438 is a wasteful number, since it uses less digits than its factorization.

504638438 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14842326.

The product of its (nonzero) digits is 276480, while the sum is 41.

The square root of 504638438 is about 22464.1589648934. The cubic root of 504638438 is about 796.1473290675.

The spelling of 504638438 in words is "five hundred four million, six hundred thirty-eight thousand, four hundred thirty-eight".