242178 has 16 divisors (see below), whose sum is σ = 489216. Its totient is φ = 79920.

The previous prime is 242173. The next prime is 242197. The reversal of 242178 is 871242.

242178 is nontrivially palindromic in base 5.

242178 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (242171) 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 7 ways as a sum of consecutive naturals, for example, 975 + ... + 1197.

It is an arithmetic number, because the mean of its divisors is an integer number (30576).

2²⁴²¹⁷⁸ is an apocalyptic number.

242178 is an abundant number, since it is smaller than the sum of its proper divisors (247038).

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

242178 is a wasteful number, since it uses less digits than its factorization.

242178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409.

The product of its digits is 896, while the sum is 24.

The square root of 242178 is about 492.1158400214. The cubic root of 242178 is about 62.3320718731.

The spelling of 242178 in words is "two hundred forty-two thousand, one hundred seventy-eight".