242454239 has 8 divisors (see below), whose sum is σ = 253992000. Its totient is φ = 231128352.

The previous prime is 242454227. The next prime is 242454271. The reversal of 242454239 is 932454242.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242454239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242454199 and 242454208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242454209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50624 + ... + 55205.

It is an arithmetic number, because the mean of its divisors is an integer number (31749000).

Almost surely, 2^242454239 is an apocalyptic number.

242454239 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

242454239 is a deficient number, since it is larger than the sum of its proper divisors (11537761).

242454239 is a wasteful number, since it uses less digits than its factorization.

242454239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105937.

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

The square root of 242454239 is about 15570.9421359146. The cubic root of 242454239 is about 623.5576244585.

The spelling of 242454239 in words is "two hundred forty-two million, four hundred fifty-four thousand, two hundred thirty-nine".