508400268 has 12 divisors (see below), whose sum is σ = 1186267320. Its totient is φ = 169466752.

The previous prime is 508400267. The next prime is 508400281. The reversal of 508400268 is 862004805.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (508400261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21183333 + ... + 21183356.

It is an arithmetic number, because the mean of its divisors is an integer number (98855610).

Almost surely, 2^508400268 is an apocalyptic number.

It is an amenable number.

508400268 is an abundant number, since it is smaller than the sum of its proper divisors (677867052).

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

508400268 is a wasteful number, since it uses less digits than its factorization.

508400268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42366696 (or 42366694 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 508400268 is about 22547.7331011346. The cubic root of 508400268 is about 798.1207284632.

The spelling of 508400268 in words is "five hundred eight million, four hundred thousand, two hundred sixty-eight".