242866689 has 12 divisors (see below), whose sum is σ = 350648496. Its totient is φ = 149456112.

The previous prime is 242866667. The next prime is 242866691. The reversal of 242866689 is 986668242.

242866689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242866689 - 2⁸ = 242866433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242866609) 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, 239007 + ... + 240020.

It is an arithmetic number, because the mean of its divisors is an integer number (29220708).

Almost surely, 2^242866689 is an apocalyptic number.

It is an amenable number.

242866689 is a deficient number, since it is larger than the sum of its proper divisors (107781807).

242866689 is a wasteful number, since it uses less digits than its factorization.

242866689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479056 (or 479043 counting only the distinct ones).

The product of its digits is 1990656, while the sum is 51.

The square root of 242866689 is about 15584.1807291882. The cubic root of 242866689 is about 623.9110116156.

The spelling of 242866689 in words is "two hundred forty-two million, eight hundred sixty-six thousand, six hundred eighty-nine".