242975239 has 8 divisors (see below), whose sum is σ = 261989280. Its totient is φ = 224007456.

The previous prime is 242975233. The next prime is 242975273. The reversal of 242975239 is 932579242.

242975239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242975239 - 2¹⁹ = 242450951 is a prime.

It is a super-3 number, since 3×242975239³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242975195 and 242975204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242975233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 232 + ... + 22045.

It is an arithmetic number, because the mean of its divisors is an integer number (32748660).

Almost surely, 2^242975239 is an apocalyptic number.

242975239 is a deficient number, since it is larger than the sum of its proper divisors (19014041).

242975239 is a wasteful number, since it uses less digits than its factorization.

242975239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23129.

The product of its digits is 272160, while the sum is 43.

The square root of 242975239 is about 15587.6630384417. The cubic root of 242975239 is about 624.0039507407.

The spelling of 242975239 in words is "two hundred forty-two million, nine hundred seventy-five thousand, two hundred thirty-nine".