242540440433 has 2 divisors, whose sum is σ = 242540440434. Its totient is φ = 242540440432.

The previous prime is 242540440409. The next prime is 242540440447. The reversal of 242540440433 is 334044045242.

242540440433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236164897024 + 6375543409 = 485968^2 + 79847^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242540440433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242540440393 and 242540440402.

It is not a weakly prime, because it can be changed into another prime (242540040433) 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, 121270220216 + 121270220217.

It is an arithmetic number, because the mean of its divisors is an integer number (121270220217).

Almost surely, 2^242540440433 is an apocalyptic number.

It is an amenable number.

242540440433 is a deficient number, since it is larger than the sum of its proper divisors (1).

242540440433 is an equidigital number, since it uses as much as digits as its factorization.

242540440433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 184320, while the sum is 35.

Adding to 242540440433 its reverse (334044045242), we get a palindrome (576584485675).

The spelling of 242540440433 in words is "two hundred forty-two billion, five hundred forty million, four hundred forty thousand, four hundred thirty-three".