242408263 has 2 divisors, whose sum is σ = 242408264. Its totient is φ = 242408262.

The previous prime is 242408237. The next prime is 242408269. The reversal of 242408263 is 362804242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242408263 - 2²⁵ = 208853831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242408269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121204131 + 121204132.

It is an arithmetic number, because the mean of its divisors is an integer number (121204132).

Almost surely, 2^242408263 is an apocalyptic number.

242408263 is a deficient number, since it is larger than the sum of its proper divisors (1).

242408263 is an equidigital number, since it uses as much as digits as its factorization.

242408263 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 242408263 is about 15569.4657262220. The cubic root of 242408263 is about 623.5182074015.

The spelling of 242408263 in words is "two hundred forty-two million, four hundred eight thousand, two hundred sixty-three".