268422403 has 2 divisors, whose sum is σ = 268422404. Its totient is φ = 268422402.

The previous prime is 268422389. The next prime is 268422409. The reversal of 268422403 is 304224862.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-268422403 is a prime.

It is not a weakly prime, because it can be changed into another prime (268422409) 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, 134211201 + 134211202.

It is an arithmetic number, because the mean of its divisors is an integer number (134211202).

Almost surely, 2^268422403 is an apocalyptic number.

268422403 is a deficient number, since it is larger than the sum of its proper divisors (1).

268422403 is an equidigital number, since it uses as much as digits as its factorization.

268422403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 268422403 is about 16383.6016492101. The cubic root of 268422403 is about 645.0691214508.

The spelling of 268422403 in words is "two hundred sixty-eight million, four hundred twenty-two thousand, four hundred three".