242550866 has 8 divisors (see below), whose sum is σ = 385227900. Its totient is φ = 114141568.

The previous prime is 242550863. The next prime is 242550871. The reversal of 242550866 is 668055242.

It can be written as a sum of positive squares in 2 ways, for example, as 188101225 + 54449641 = 13715^2 + 7379^2 .

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

It is not an unprimeable number, because it can be changed into a prime (242550863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3566891 + ... + 3566958.

Almost surely, 2^242550866 is an apocalyptic number.

242550866 is a deficient number, since it is larger than the sum of its proper divisors (142677034).

242550866 is a wasteful number, since it uses less digits than its factorization.

242550866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7133868.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 242550866 is about 15574.0446255942. The cubic root of 242550866 is about 623.6404503975.

The spelling of 242550866 in words is "two hundred forty-two million, five hundred fifty thousand, eight hundred sixty-six".