2216424 has 64 divisors (see below), whose sum is σ = 6451200. Its totient is φ = 621504.

The previous prime is 2216413. The next prime is 2216437. The reversal of 2216424 is 4246122.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2216424.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13189 + ... + 13355.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^2216424 is an apocalyptic number.

2216424 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2216424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3225600).

2216424 is an abundant number, since it is smaller than the sum of its proper divisors (4234776).

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

2216424 is a wasteful number, since it uses less digits than its factorization.

2216424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262 (or 258 counting only the distinct ones).

The product of its digits is 768, while the sum is 21.

The square root of 2216424 is about 1488.7659319047. The cubic root of 2216424 is about 130.3819928213.

The spelling of 2216424 in words is "two million, two hundred sixteen thousand, four hundred twenty-four".