1844219 has 4 divisors (see below), whose sum is σ = 1986096. Its totient is φ = 1702344.

The previous prime is 1844207. The next prime is 1844243. The reversal of 1844219 is 9124481.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1844219 - 2¹² = 1840123 is a prime.

It is a super-2 number, since 2×1844219² = 6802287439922, which contains 22 as substring.

It is a d-powerful number, because it can be written as 1 + 8 + 4⁹ + 4¹⁰ + 2¹¹ + 1 + 9⁶ .

It is a Duffinian number.

It is a plaindrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 1844191 and 1844200.

It is not an unprimeable number, because it can be changed into a prime (1844299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 70919 + ... + 70944.

It is an arithmetic number, because the mean of its divisors is an integer number (496524).

2^1844219 is an apocalyptic number.

1844219 is a deficient number, since it is larger than the sum of its proper divisors (141877).

1844219 is a wasteful number, since it uses less digits than its factorization.

1844219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141876.

The product of its digits is 2304, while the sum is 29.

The square root of 1844219 is about 1358.0202502172. The cubic root of 1844219 is about 122.6320996186.

The spelling of 1844219 in words is "one million, eight hundred forty-four thousand, two hundred nineteen".