242036666 has 4 divisors (see below), whose sum is σ = 363055002. Its totient is φ = 121018332.

The previous prime is 242036617. The next prime is 242036677. The reversal of 242036666 is 666630242.

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., 192404641 + 49632025 = 13871^2 + 7045^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60509165 + ... + 60509168.

Almost surely, 2^242036666 is an apocalyptic number.

242036666 is a deficient number, since it is larger than the sum of its proper divisors (121018336).

242036666 is a wasteful number, since it uses less digits than its factorization.

242036666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121018335.

The product of its (nonzero) digits is 62208, while the sum is 35.

The square root of 242036666 is about 15557.5276313430. The cubic root of 242036666 is about 623.1994394051.

The spelling of 242036666 in words is "two hundred forty-two million, thirty-six thousand, six hundred sixty-six".