504638 has 4 divisors (see below), whose sum is σ = 756960. Its totient is φ = 252318.

The previous prime is 504631. The next prime is 504661. The reversal of 504638 is 836405.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×504638² = 509319022088, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504631) 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 as a sum of consecutive naturals, namely, 126158 + ... + 126161.

It is an arithmetic number, because the mean of its divisors is an integer number (189240).

2⁵⁰⁴⁶³⁸ is an apocalyptic number.

504638 is a deficient number, since it is larger than the sum of its proper divisors (252322).

504638 is a wasteful number, since it uses less digits than its factorization.

504638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252321.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 504638 is about 710.3787722054. The cubic root of 504638 is about 79.6147098729.

The spelling of 504638 in words is "five hundred four thousand, six hundred thirty-eight".