242203205 has 8 divisors (see below), whose sum is σ = 290741400. Its totient is φ = 193697536.

The previous prime is 242203187. The next prime is 242203207. The reversal of 242203205 is 502302242.

It can be written as a sum of positive squares in 4 ways, for example, as 15007876 + 227195329 = 3874^2 + 15073^2 .

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 242203205 - 2¹² = 242199109 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242203207) 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, 13481 + ... + 25809.

It is an arithmetic number, because the mean of its divisors is an integer number (36342675).

Almost surely, 2^242203205 is an apocalyptic number.

It is an amenable number.

242203205 is a deficient number, since it is larger than the sum of its proper divisors (48538195).

242203205 is a wasteful number, since it uses less digits than its factorization.

242203205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16263.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 242203205 is about 15562.8790716885. The cubic root of 242203205 is about 623.3423422937.

Adding to 242203205 its reverse (502302242), we get a palindrome (744505447).

The spelling of 242203205 in words is "two hundred forty-two million, two hundred three thousand, two hundred five".