242530666 has 8 divisors (see below), whose sum is σ = 415766880. Its totient is φ = 103941708.

The previous prime is 242530627. The next prime is 242530681. The reversal of 242530666 is 666035242.

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

It is a super-2 number, since 2×242530666² = 117642247900807112, which contains 22 as substring.

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, 8661796 + ... + 8661823.

It is an arithmetic number, because the mean of its divisors is an integer number (51970860).

Almost surely, 2^242530666 is an apocalyptic number.

242530666 is a deficient number, since it is larger than the sum of its proper divisors (173236214).

242530666 is a wasteful number, since it uses less digits than its factorization.

242530666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17323628.

The product of its (nonzero) digits is 51840, while the sum is 34.

The square root of 242530666 is about 15573.3960971909. The cubic root of 242530666 is about 623.6231373461.

The spelling of 242530666 in words is "two hundred forty-two million, five hundred thirty thousand, six hundred sixty-six".