242219 has 6 divisors (see below), whose sum is σ = 249876. Its totient is φ = 234780.

The previous prime is 242201. The next prime is 242227. The reversal of 242219 is 912242.

It is not a de Polignac number, because 242219 - 2⁸ = 241963 is a prime.

It is a super-2 number, since 2×242219² = 117340087922, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 242219.

It is not an unprimeable number, because it can be changed into a prime (242279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1784 + ... + 1914.

It is an arithmetic number, because the mean of its divisors is an integer number (41646).

2²⁴²²¹⁹ is an apocalyptic number.

242219 is a deficient number, since it is larger than the sum of its proper divisors (7657).

242219 is an equidigital number, since it uses as much as digits as its factorization.

242219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217 (or 174 counting only the distinct ones).

The product of its digits is 288, while the sum is 20.

The square root of 242219 is about 492.1574951172. The cubic root of 242219 is about 62.3355892181.

The spelling of 242219 in words is "two hundred forty-two thousand, two hundred nineteen".