242709 has 8 divisors (see below), whose sum is σ = 342720. Its totient is φ = 152256.

The previous prime is 242689. The next prime is 242713. The reversal of 242709 is 907242.

242709 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 not a de Polignac number, because 242709 - 2⁵ = 242677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242729) 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, 2329 + ... + 2430.

It is an arithmetic number, because the mean of its divisors is an integer number (42840).

2²⁴²⁷⁰⁹ is an apocalyptic number.

It is an amenable number.

242709 is a deficient number, since it is larger than the sum of its proper divisors (100011).

242709 is a wasteful number, since it uses less digits than its factorization.

242709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4779.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 242709 is about 492.6550517350. The cubic root of 242709 is about 62.3775950958.

The spelling of 242709 in words is "two hundred forty-two thousand, seven hundred nine".