268030387 has 2 divisors, whose sum is σ = 268030388. Its totient is φ = 268030386.

The previous prime is 268030363. The next prime is 268030391. The reversal of 268030387 is 783030862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268030387 is a prime.

It is not a weakly prime, because it can be changed into another prime (268033387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134015193 + 134015194.

It is an arithmetic number, because the mean of its divisors is an integer number (134015194).

Almost surely, 2^268030387 is an apocalyptic number.

268030387 is a deficient number, since it is larger than the sum of its proper divisors (1).

268030387 is an equidigital number, since it uses as much as digits as its factorization.

268030387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 268030387 is about 16371.6336081651. The cubic root of 268030387 is about 644.7549392534.

The spelling of 268030387 in words is "two hundred sixty-eight million, thirty thousand, three hundred eighty-seven".