242748866 has 4 divisors (see below), whose sum is σ = 364123302. Its totient is φ = 121374432.

The previous prime is 242748853. The next prime is 242748887. The reversal of 242748866 is 668847242.

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

It can be written as a sum of positive squares in only one way, i.e., 121638841 + 121110025 = 11029^2 + 11005^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 242748866.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60687215 + ... + 60687218.

Almost surely, 2^242748866 is an apocalyptic number.

242748866 is a deficient number, since it is larger than the sum of its proper divisors (121374436).

242748866 is a wasteful number, since it uses less digits than its factorization.

242748866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121374435.

The product of its digits is 1032192, while the sum is 47.

The square root of 242748866 is about 15580.4000590485. The cubic root of 242748866 is about 623.8101017183.

The spelling of 242748866 in words is "two hundred forty-two million, seven hundred forty-eight thousand, eight hundred sixty-six".