242343021 has 8 divisors (see below), whose sum is σ = 325107040. Its totient is φ = 160570512.

The previous prime is 242343011. The next prime is 242343061. The reversal of 242343021 is 120343242.

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

It is not a de Polignac number, because 242343021 - 2¹⁰ = 242341997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242343011) 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 7 ways as a sum of consecutive naturals, for example, 247306 + ... + 248283.

It is an arithmetic number, because the mean of its divisors is an integer number (40638380).

Almost surely, 2^242343021 is an apocalyptic number.

It is an amenable number.

242343021 is a deficient number, since it is larger than the sum of its proper divisors (82764019).

242343021 is a wasteful number, since it uses less digits than its factorization.

242343021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495755.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 242343021 is about 15567.3703945143. The cubic root of 242343021 is about 623.4622642797.

Adding to 242343021 its reverse (120343242), we get a palindrome (362686263).

The spelling of 242343021 in words is "two hundred forty-two million, three hundred forty-three thousand, twenty-one".