242343457 has 2 divisors, whose sum is σ = 242343458. Its totient is φ = 242343456.

The previous prime is 242343419. The next prime is 242343469. The reversal of 242343457 is 754343242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 221146641 + 21196816 = 14871^2 + 4604^2 .

It is a cyclic number.

It is not a de Polignac number, because 242343457 - 2²³ = 233954849 is a prime.

It is not a weakly prime, because it can be changed into another prime (242343407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121171728 + 121171729.

It is an arithmetic number, because the mean of its divisors is an integer number (121171729).

Almost surely, 2^242343457 is an apocalyptic number.

It is an amenable number.

242343457 is a deficient number, since it is larger than the sum of its proper divisors (1).

242343457 is an equidigital number, since it uses as much as digits as its factorization.

242343457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 80640, while the sum is 34.

The square root of 242343457 is about 15567.3843981576. The cubic root of 242343457 is about 623.4626381704.

Adding to 242343457 its reverse (754343242), we get a palindrome (996686699).

The spelling of 242343457 in words is "two hundred forty-two million, three hundred forty-three thousand, four hundred fifty-seven".