242188 has 12 divisors (see below), whose sum is σ = 427392. Its totient is φ = 120080.

The previous prime is 242173. The next prime is 242197. The reversal of 242188 is 881242.

Its product of digits (1024) is a multiple of the sum of its prime factors (512).

It is an unprimeable number.

242188 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 606 + ... + 922.

It is an arithmetic number, because the mean of its divisors is an integer number (35616).

2²⁴²¹⁸⁸ is an apocalyptic number.

It is an amenable number.

242188 is a deficient number, since it is larger than the sum of its proper divisors (185204).

242188 is a wasteful number, since it uses less digits than its factorization.

242188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 510 counting only the distinct ones).

The product of its digits is 1024, while the sum is 25.

The square root of 242188 is about 492.1260001260. The cubic root of 242188 is about 62.3329297987.

The spelling of 242188 in words is "two hundred forty-two thousand, one hundred eighty-eight".