504868990 has 16 divisors (see below), whose sum is σ = 925911648. Its totient is φ = 198137056.

The previous prime is 504868979. The next prime is 504868993. The reversal of 504868990 is 99868405.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (504868993) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 475762 + ... + 476821.

It is an arithmetic number, because the mean of its divisors is an integer number (57869478).

Almost surely, 2^504868990 is an apocalyptic number.

504868990 is a deficient number, since it is larger than the sum of its proper divisors (421042658).

504868990 is a wasteful number, since it uses less digits than its factorization.

504868990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952643.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 504868990 is about 22469.2899309257. The cubic root of 504868990 is about 796.2685547472.

The spelling of 504868990 in words is "five hundred four million, eight hundred sixty-eight thousand, nine hundred ninety".