508646868 has 48 divisors (see below), whose sum is σ = 1263265920. Its totient is φ = 158736384.

The previous prime is 508646839. The next prime is 508646869. The reversal of 508646868 is 868646805.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 508646868.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (508646869) 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, 32913 + ... + 45831.

It is an arithmetic number, because the mean of its divisors is an integer number (26318040).

Almost surely, 2^508646868 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 508646868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (631632960).

508646868 is an abundant number, since it is smaller than the sum of its proper divisors (754619052).

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

508646868 is a wasteful number, since it uses less digits than its factorization.

508646868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13136 (or 13134 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The square root of 508646868 is about 22553.2008371317. The cubic root of 508646868 is about 798.2497506599.

The spelling of 508646868 in words is "five hundred eight million, six hundred forty-six thousand, eight hundred sixty-eight".