268915239 has 6 divisors (see below), whose sum is σ = 388433136. Its totient is φ = 179276820.

The previous prime is 268915237. The next prime is 268915243. The reversal of 268915239 is 932519862.

It is not a de Polignac number, because 268915239 - 2¹ = 268915237 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 268915194 and 268915203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268915237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 14939727 + ... + 14939744.

It is an arithmetic number, because the mean of its divisors is an integer number (64738856).

Almost surely, 2^268915239 is an apocalyptic number.

268915239 is a deficient number, since it is larger than the sum of its proper divisors (119517897).

268915239 is a wasteful number, since it uses less digits than its factorization.

268915239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29879477 (or 29879474 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 268915239 is about 16398.6352785834. The cubic root of 268915239 is about 645.4636723680.

The spelling of 268915239 in words is "two hundred sixty-eight million, nine hundred fifteen thousand, two hundred thirty-nine".