1844216 has 32 divisors (see below), whose sum is σ = 3974400. Its totient is φ = 793440.

The previous prime is 1844207. The next prime is 1844243. The reversal of 1844216 is 6124481.

It is a super-2 number, since 2×1844216² = 6802265309312, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1121 + ... + 2223.

It is an arithmetic number, because the mean of its divisors is an integer number (124200).

2^1844216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1844216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1987200).

1844216 is an abundant number, since it is smaller than the sum of its proper divisors (2130184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1844216 is a wasteful number, since it uses less digits than its factorization.

1844216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139 (or 1135 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 1844216 is about 1358.0191456677. The cubic root of 1844216 is about 122.6320331232.

Adding to 1844216 its reverse (6124481), we get a palindrome (7968697).

The spelling of 1844216 in words is "one million, eight hundred forty-four thousand, two hundred sixteen".