242342459 has 4 divisors (see below), whose sum is σ = 243037200. Its totient is φ = 241647720.

The previous prime is 242342393. The next prime is 242342479. The reversal of 242342459 is 954243242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 954243242 = 2 ⋅477121621.

It is a cyclic number.

It is not a de Polignac number, because 242342459 - 2¹² = 242338363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242342479) 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 in 3 ways as a sum of consecutive naturals, for example, 346847 + ... + 347544.

It is an arithmetic number, because the mean of its divisors is an integer number (60759300).

Almost surely, 2^242342459 is an apocalyptic number.

242342459 is a deficient number, since it is larger than the sum of its proper divisors (694741).

242342459 is an equidigital number, since it uses as much as digits as its factorization.

242342459 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694740.

The product of its digits is 69120, while the sum is 35.

The square root of 242342459 is about 15567.3523439280. The cubic root of 242342459 is about 623.4617823374.

The spelling of 242342459 in words is "two hundred forty-two million, three hundred forty-two thousand, four hundred fifty-nine".