242388479 has 2 divisors, whose sum is σ = 242388480. Its totient is φ = 242388478.

The previous prime is 242388439. The next prime is 242388521. The reversal of 242388479 is 974883242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242388479 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242388439) 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, 121194239 + 121194240.

It is an arithmetic number, because the mean of its divisors is an integer number (121194240).

Almost surely, 2^242388479 is an apocalyptic number.

242388479 is a deficient number, since it is larger than the sum of its proper divisors (1).

242388479 is an equidigital number, since it uses as much as digits as its factorization.

242388479 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 47.

The square root of 242388479 is about 15568.8303671149. The cubic root of 242388479 is about 623.5012442561.

The spelling of 242388479 in words is "two hundred forty-two million, three hundred eighty-eight thousand, four hundred seventy-nine".