242020666 has 8 divisors (see below), whose sum is σ = 365802624. Its totient is φ = 120086460.

The previous prime is 242020633. The next prime is 242020703. The reversal of 242020666 is 666020242.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 461610 + ... + 462133.

It is an arithmetic number, because the mean of its divisors is an integer number (45725328).

Almost surely, 2^242020666 is an apocalyptic number.

242020666 is a deficient number, since it is larger than the sum of its proper divisors (123781958).

242020666 is a wasteful number, since it uses less digits than its factorization.

242020666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 923876.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 242020666 is about 15557.0134023212. The cubic root of 242020666 is about 623.1857067602.

The spelling of 242020666 in words is "two hundred forty-two million, twenty thousand, six hundred sixty-six".