504393864 has 64 divisors (see below), whose sum is σ = 1417046400. Its totient is φ = 148448256.

The previous prime is 504393863. The next prime is 504393871. The reversal of 504393864 is 468393405.

It is not an unprimeable number, because it can be changed into a prime (504393863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27969 + ... + 42320.

It is an arithmetic number, because the mean of its divisors is an integer number (22141350).

Almost surely, 2^504393864 is an apocalyptic number.

It is an amenable number.

504393864 is an abundant number, since it is smaller than the sum of its proper divisors (912652536).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

504393864 is a wasteful number, since it uses less digits than its factorization.

504393864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70334 (or 70330 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The square root of 504393864 is about 22458.7146560083. The cubic root of 504393864 is about 796.0186901666.

The spelling of 504393864 in words is "five hundred four million, three hundred ninety-three thousand, eight hundred sixty-four".