242418 has 16 divisors (see below), whose sum is σ = 529056. Its totient is φ = 73440.

The previous prime is 242413. The next prime is 242419. The reversal of 242418 is 814242.

It is a junction number, because it is equal to n+sod(n) for n = 242394 and 242403.

It is not an unprimeable number, because it can be changed into a prime (242413) by changing a digit.

242418 is an untouchable number, because it is not equal to the sum of proper divisors of any 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, 1771 + ... + 1902.

It is an arithmetic number, because the mean of its divisors is an integer number (33066).

2²⁴²⁴¹⁸ is an apocalyptic number.

242418 is an abundant number, since it is smaller than the sum of its proper divisors (286638).

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

242418 is a wasteful number, since it uses less digits than its factorization.

242418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3689.

The product of its digits is 512, while the sum is 21.

The square root of 242418 is about 492.3596246647. The cubic root of 242418 is about 62.3526555736.

It can be divided in two parts, 2424 and 18, that added together give a palindrome (2442).

The spelling of 242418 in words is "two hundred forty-two thousand, four hundred eighteen".