268988518 has 16 divisors (see below), whose sum is σ = 433597104. Its totient is φ = 124692480.

The previous prime is 268988513. The next prime is 268988537. The reversal of 268988518 is 815889862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268988513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56763 + ... + 61318.

It is an arithmetic number, because the mean of its divisors is an integer number (27099819).

Almost surely, 2^268988518 is an apocalyptic number.

268988518 is a deficient number, since it is larger than the sum of its proper divisors (164608586).

268988518 is a wasteful number, since it uses less digits than its factorization.

268988518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118167.

The product of its digits is 2211840, while the sum is 55.

The square root of 268988518 is about 16400.8694281736. The cubic root of 268988518 is about 645.5222963381.

The spelling of 268988518 in words is "two hundred sixty-eight million, nine hundred eighty-eight thousand, five hundred eighteen".