242743916 has 12 divisors (see below), whose sum is σ = 424912488. Its totient is φ = 121340352.

The previous prime is 242743913. The next prime is 242743931. The reversal of 242743916 is 619347242.

It is a self number, because there is not a number n which added to its sum of digits gives 242743916.

It is not an unprimeable number, because it can be changed into a prime (242743913) 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, 21695 + ... + 30921.

It is an arithmetic number, because the mean of its divisors is an integer number (35409374).

Almost surely, 2^242743916 is an apocalyptic number.

It is an amenable number.

242743916 is a deficient number, since it is larger than the sum of its proper divisors (182168572).

242743916 is a wasteful number, since it uses less digits than its factorization.

242743916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15808 (or 15806 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 242743916 is about 15580.2412048081. The cubic root of 242743916 is about 623.8058615598.

The spelling of 242743916 in words is "two hundred forty-two million, seven hundred forty-three thousand, nine hundred sixteen".