268519393 has 2 divisors, whose sum is σ = 268519394. Its totient is φ = 268519392.

The previous prime is 268519379. The next prime is 268519441. The reversal of 268519393 is 393915862.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196897024 + 71622369 = 14032^2 + 8463^2 .

It is a cyclic number.

It is not a de Polignac number, because 268519393 - 2¹⁷ = 268388321 is a prime.

It is not a weakly prime, because it can be changed into another prime (268519313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134259696 + 134259697.

It is an arithmetic number, because the mean of its divisors is an integer number (134259697).

Almost surely, 2^268519393 is an apocalyptic number.

It is an amenable number.

268519393 is a deficient number, since it is larger than the sum of its proper divisors (1).

268519393 is an equidigital number, since it uses as much as digits as its factorization.

268519393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 46.

The square root of 268519393 is about 16386.5613537435. The cubic root of 268519393 is about 645.1468071174.

The spelling of 268519393 in words is "two hundred sixty-eight million, five hundred nineteen thousand, three hundred ninety-three".