242838219 has 8 divisors (see below), whose sum is σ = 348690832. Its totient is φ = 149438880.

The previous prime is 242838187. The next prime is 242838229. The reversal of 242838219 is 912838242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242838219 - 2⁵ = 242838187 is a prime.

It is a super-2 number, since 2×242838219² = 117940801214183922, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39), and also a Moran number because the ratio is a prime number: 6226621 = 242838219 / (2 + 4 + 2 + 8 + 3 + 8 + 2 + 1 + 9).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242838229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3113272 + ... + 3113349.

It is an arithmetic number, because the mean of its divisors is an integer number (43586354).

Almost surely, 2^242838219 is an apocalyptic number.

242838219 is a deficient number, since it is larger than the sum of its proper divisors (105852613).

242838219 is a wasteful number, since it uses less digits than its factorization.

242838219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226637.

The product of its digits is 55296, while the sum is 39.

The square root of 242838219 is about 15583.2672761523. The cubic root of 242838219 is about 623.8866313809.

The spelling of 242838219 in words is "two hundred forty-two million, eight hundred thirty-eight thousand, two hundred nineteen".