242489339 has 2 divisors, whose sum is σ = 242489340. Its totient is φ = 242489338.

The previous prime is 242489333. The next prime is 242489369. The reversal of 242489339 is 933984242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242489339 - 2⁴ = 242489323 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242489339.

It is not a weakly prime, because it can be changed into another prime (242489333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121244669 + 121244670.

It is an arithmetic number, because the mean of its divisors is an integer number (121244670).

Almost surely, 2^242489339 is an apocalyptic number.

242489339 is a deficient number, since it is larger than the sum of its proper divisors (1).

242489339 is an equidigital number, since it uses as much as digits as its factorization.

242489339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 44.

The square root of 242489339 is about 15572.0691945547. The cubic root of 242489339 is about 623.5877137331.

The spelling of 242489339 in words is "two hundred forty-two million, four hundred eighty-nine thousand, three hundred thirty-nine".