268509208 has 16 divisors (see below), whose sum is σ = 549223560. Its totient is φ = 122049600.

The previous prime is 268509193. The next prime is 268509209. The reversal of 268509208 is 802905862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268509209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1525533 + ... + 1525708.

Almost surely, 2^268509208 is an apocalyptic number.

It is an amenable number.

268509208 is an abundant number, since it is smaller than the sum of its proper divisors (280714352).

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

268509208 is a wasteful number, since it uses less digits than its factorization.

268509208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051258 (or 3051254 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 268509208 is about 16386.2505778473. The cubic root of 268509208 is about 645.1386501606.

The spelling of 268509208 in words is "two hundred sixty-eight million, five hundred nine thousand, two hundred eight".