242403407 has 2 divisors, whose sum is σ = 242403408. Its totient is φ = 242403406.

The previous prime is 242403389. The next prime is 242403433. The reversal of 242403407 is 704304242.

It is an a-pointer prime, because the next prime (242403433) can be obtained adding 242403407 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242403407 - 2¹⁰ = 242402383 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 (242403457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121201703 + 121201704.

It is an arithmetic number, because the mean of its divisors is an integer number (121201704).

Almost surely, 2^242403407 is an apocalyptic number.

242403407 is a deficient number, since it is larger than the sum of its proper divisors (1).

242403407 is an equidigital number, since it uses as much as digits as its factorization.

242403407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 26.

The square root of 242403407 is about 15569.3097791778. The cubic root of 242403407 is about 623.5140438682.

Adding to 242403407 its reverse (704304242), we get a palindrome (946707649).

The spelling of 242403407 in words is "two hundred forty-two million, four hundred three thousand, four hundred seven".