660242 has 8 divisors (see below), whose sum is σ = 1080432. Its totient is φ = 300100.

The previous prime is 660241. The next prime is 660251. The reversal of 660242 is 242066.

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

660242 is a modest number, since divided by 242 gives 66 as remainder.

It is not an unprimeable number, because it can be changed into a prime (660241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14984 + ... + 15027.

It is an arithmetic number, because the mean of its divisors is an integer number (135054).

2⁶⁶⁰²⁴² is an apocalyptic number.

660242 is a deficient number, since it is larger than the sum of its proper divisors (420190).

660242 is a wasteful number, since it uses less digits than its factorization.

660242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30024.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 660242 is about 812.5527675173. The cubic root of 660242 is about 87.0765169963.

The spelling of 660242 in words is "six hundred sixty thousand, two hundred forty-two".