242660 has 24 divisors (see below), whose sum is σ = 556416. Its totient is φ = 88160.

The previous prime is 242659. The next prime is 242677. The reversal of 242660 is 66242.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332 + ... + 771.

It is an arithmetic number, because the mean of its divisors is an integer number (23184).

2²⁴²⁶⁶⁰ is an apocalyptic number.

242660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

242660 is an abundant number, since it is smaller than the sum of its proper divisors (313756).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

242660 is a wasteful number, since it uses less digits than its factorization.

242660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123 (or 1121 counting only the distinct ones).

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

The square root of 242660 is about 492.6053186883. The cubic root of 242660 is about 62.3733970536.

The spelling of 242660 in words is "two hundred forty-two thousand, six hundred sixty".