268105387 has 18 divisors (see below), whose sum is σ = 302881964. Its totient is φ = 237015240.

The previous prime is 268105379. The next prime is 268105393. The reversal of 268105387 is 783501862.

It is not a de Polignac number, because 268105387 - 2³ = 268105379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (268106387) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1180968 + ... + 1181194.

Almost surely, 2^268105387 is an apocalyptic number.

268105387 is a deficient number, since it is larger than the sum of its proper divisors (34776577).

268105387 is an equidigital number, since it uses as much as digits as its factorization.

268105387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519 (or 281 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 268105387 is about 16373.9239951821. The cubic root of 268105387 is about 644.8150718766.

The spelling of 268105387 in words is "two hundred sixty-eight million, one hundred five thousand, three hundred eighty-seven".