504640868 has 6 divisors (see below), whose sum is σ = 883121526. Its totient is φ = 252320432.

The previous prime is 504640853. The next prime is 504640889. The reversal of 504640868 is 868046405.

It can be written as a sum of positive squares in only one way, i.e., 454627684 + 50013184 = 21322^2 + 7072^2 .

It is an unprimeable number.

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, 63080105 + ... + 63080112.

It is an arithmetic number, because the mean of its divisors is an integer number (147186921).

Almost surely, 2^504640868 is an apocalyptic number.

It is an amenable number.

504640868 is a deficient number, since it is larger than the sum of its proper divisors (378480658).

504640868 is a wasteful number, since it uses less digits than its factorization.

504640868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126160221 (or 126160219 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 41.

The square root of 504640868 is about 22464.2130509840. The cubic root of 504640868 is about 796.1486069691.

The spelling of 504640868 in words is "five hundred four million, six hundred forty thousand, eight hundred sixty-eight".