242066305 has 12 divisors (see below), whose sum is σ = 314544060. Its totient is φ = 178756032.

The previous prime is 242066303. The next prime is 242066339. The reversal of 242066305 is 503660242.

It is a happy number.

242066305 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 113039424 + 129026881 = 10632^2 + 11359^2 .

It is not a de Polignac number, because 242066305 - 2¹ = 242066303 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242066303) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 142390 + ... + 144079.

It is an arithmetic number, because the mean of its divisors is an integer number (26212005).

Almost surely, 2^242066305 is an apocalyptic number.

It is an amenable number.

242066305 is a deficient number, since it is larger than the sum of its proper divisors (72477755).

242066305 is a wasteful number, since it uses less digits than its factorization.

242066305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286500 (or 286487 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 242066305 is about 15558.4801635635. The cubic root of 242066305 is about 623.2248766726.

The spelling of 242066305 in words is "two hundred forty-two million, sixty-six thousand, three hundred five".