268904508 has 12 divisors (see below), whose sum is σ = 627443880. Its totient is φ = 89634832.

The previous prime is 268904483. The next prime is 268904513. The reversal of 268904508 is 805409862.

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

It is a super-3 number, since 3×268904508³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 268904508.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11204343 + ... + 11204366.

It is an arithmetic number, because the mean of its divisors is an integer number (52286990).

Almost surely, 2^268904508 is an apocalyptic number.

It is an amenable number.

268904508 is an abundant number, since it is smaller than the sum of its proper divisors (358539372).

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

268904508 is a wasteful number, since it uses less digits than its factorization.

268904508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22408716 (or 22408714 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 42.

The square root of 268904508 is about 16398.3080834579. The cubic root of 268904508 is about 645.4550865613.

The spelling of 268904508 in words is "two hundred sixty-eight million, nine hundred four thousand, five hundred eight".