242670 has 16 divisors (see below), whose sum is σ = 582480. Its totient is φ = 64704.

The previous prime is 242659. The next prime is 242677. The reversal of 242670 is 76242.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242677) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4015 + ... + 4074.

It is an arithmetic number, because the mean of its divisors is an integer number (36405).

2²⁴²⁶⁷⁰ is an apocalyptic number.

242670 is an abundant number, since it is smaller than the sum of its proper divisors (339810).

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

242670 is a wasteful number, since it uses less digits than its factorization.

242670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8099.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 242670 is about 492.6154686974. The cubic root of 242670 is about 62.3742538428.

Adding to 242670 its product of nonzero digits (672), we get a palindrome (243342).

The spelling of 242670 in words is "two hundred forty-two thousand, six hundred seventy".