242040243 has 8 divisors (see below), whose sum is σ = 328190400. Its totient is φ = 158625128.

The previous prime is 242040223. The next prime is 242040251. The reversal of 242040243 is 342040242.

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

It is a cyclic number.

It is not a de Polignac number, because 242040243 - 2⁹ = 242039731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242040223) 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, 683553 + ... + 683906.

It is an arithmetic number, because the mean of its divisors is an integer number (41023800).

Almost surely, 2^242040243 is an apocalyptic number.

242040243 is a deficient number, since it is larger than the sum of its proper divisors (86150157).

242040243 is a wasteful number, since it uses less digits than its factorization.

242040243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1367521.

The product of its (nonzero) digits is 1536, while the sum is 21.

The square root of 242040243 is about 15557.6425913440. The cubic root of 242040243 is about 623.2025094267.

Adding to 242040243 its reverse (342040242), we get a palindrome (584080485).

Subtracting 242040243 from its reverse (342040242), we obtain a palindrome (99999999).

The spelling of 242040243 in words is "two hundred forty-two million, forty thousand, two hundred forty-three".