242040503 has 4 divisors (see below), whose sum is σ = 243807360. Its totient is φ = 240273648.

The previous prime is 242040499. The next prime is 242040607. The reversal of 242040503 is 305040242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242040503 - 2² = 242040499 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 (242040103) 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 3 ways as a sum of consecutive naturals, for example, 883223 + ... + 883496.

It is an arithmetic number, because the mean of its divisors is an integer number (60951840).

Almost surely, 2^242040503 is an apocalyptic number.

242040503 is a deficient number, since it is larger than the sum of its proper divisors (1766857).

242040503 is a wasteful number, since it uses less digits than its factorization.

242040503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766856.

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

The square root of 242040503 is about 15557.6509473635. The cubic root of 242040503 is about 623.2027325750.

Adding to 242040503 its reverse (305040242), we get a palindrome (547080745).

The spelling of 242040503 in words is "two hundred forty-two million, forty thousand, five hundred three".