268940363 has 2 divisors, whose sum is σ = 268940364. Its totient is φ = 268940362.

The previous prime is 268940351. The next prime is 268940369. The reversal of 268940363 is 363049862.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 268940363 - 2⁶ = 268940299 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 268940363.

It is not a weakly prime, because it can be changed into another prime (268940369) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 134470181 + 134470182.

It is an arithmetic number, because the mean of its divisors is an integer number (134470182).

Almost surely, 2^268940363 is an apocalyptic number.

268940363 is a deficient number, since it is larger than the sum of its proper divisors (1).

268940363 is an equidigital number, since it uses as much as digits as its factorization.

268940363 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 41.

The square root of 268940363 is about 16399.4013000475. The cubic root of 268940363 is about 645.4837730316.

The spelling of 268940363 in words is "two hundred sixty-eight million, nine hundred forty thousand, three hundred sixty-three".