242002666 has 8 divisors (see below), whose sum is σ = 366598404. Its totient is φ = 119803200.

The previous prime is 242002643. The next prime is 242002679. The reversal of 242002666 is 666200242.

It can be written as a sum of positive squares in 2 ways, for example, as 221563225 + 20439441 = 14885^2 + 4521^2 .

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

It is a super-2 number, since 2×242002666² = 117130580702215112, 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, 598815 + ... + 599218.

Almost surely, 2^242002666 is an apocalyptic number.

242002666 is a deficient number, since it is larger than the sum of its proper divisors (124595738).

242002666 is a wasteful number, since it uses less digits than its factorization.

242002666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1198136.

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

The square root of 242002666 is about 15556.4348743534. The cubic root of 242002666 is about 623.1702568112.

The spelling of 242002666 in words is "two hundred forty-two million, two thousand, six hundred sixty-six".