242703389 has 2 divisors, whose sum is σ = 242703390. Its totient is φ = 242703388.

The previous prime is 242703379. The next prime is 242703421. The reversal of 242703389 is 983307242.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 226743364 + 15960025 = 15058^2 + 3995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242703389 is a prime.

It is a super-3 number, since 3×242703389³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242703379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121351694 + 121351695.

It is an arithmetic number, because the mean of its divisors is an integer number (121351695).

Almost surely, 2^242703389 is an apocalyptic number.

It is an amenable number.

242703389 is a deficient number, since it is larger than the sum of its proper divisors (1).

242703389 is an equidigital number, since it uses as much as digits as its factorization.

242703389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 38.

The square root of 242703389 is about 15578.9405608982. The cubic root of 242703389 is about 623.7711440578.

The spelling of 242703389 in words is "two hundred forty-two million, seven hundred three thousand, three hundred eighty-nine".