8442219 has 16 divisors (see below), whose sum is σ = 12153600. Its totient is φ = 5196576.

The previous prime is 8442167. The next prime is 8442221. The reversal of 8442219 is 9122448.

It is not a de Polignac number, because 8442219 - 2¹² = 8438123 is a prime.

It is a super-2 number, since 2×8442219² = 142542123287922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8442229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 109 + ... + 4110.

It is an arithmetic number, because the mean of its divisors is an integer number (759600).

Almost surely, 2^8442219 is an apocalyptic number.

8442219 is a deficient number, since it is larger than the sum of its proper divisors (3711381).

8442219 is a wasteful number, since it uses less digits than its factorization.

8442219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4274.

The product of its digits is 4608, while the sum is 30.

The square root of 8442219 is about 2905.5496898177. The cubic root of 8442219 is about 203.6192677615.

The spelling of 8442219 in words is "eight million, four hundred forty-two thousand, two hundred nineteen".