242667 has 12 divisors (see below), whose sum is σ = 357240. Its totient is φ = 158688.

The previous prime is 242659. The next prime is 242677. The reversal of 242667 is 766242.

It is not a de Polignac number, because 242667 - 2³ = 242659 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242667.

It is not an unprimeable number, because it can be changed into a prime (242617) 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 11 ways as a sum of consecutive naturals, for example, 303 + ... + 759.

It is an arithmetic number, because the mean of its divisors is an integer number (29770).

2²⁴²⁶⁶⁷ is an apocalyptic number.

242667 is a deficient number, since it is larger than the sum of its proper divisors (114573).

242667 is a wasteful number, since it uses less digits than its factorization.

242667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522 (or 519 counting only the distinct ones).

The product of its digits is 4032, while the sum is 27.

The square root of 242667 is about 492.6124237167. The cubic root of 242667 is about 62.3739968085.

It can be divided in two parts, 242 and 667, that added together give a palindrome (909).

The spelling of 242667 in words is "two hundred forty-two thousand, six hundred sixty-seven".