2223624 has 32 divisors (see below), whose sum is σ = 5987520. Its totient is φ = 684096.

The previous prime is 2223623. The next prime is 2223631. The reversal of 2223624 is 4263222.

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 2223624.

It is not an unprimeable number, because it can be changed into a prime (2223623) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3252 + ... + 3875.

It is an arithmetic number, because the mean of its divisors is an integer number (187110).

2^2223624 is an apocalyptic number.

2223624 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2223624 is an abundant number, since it is smaller than the sum of its proper divisors (3763896).

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

2223624 is a wasteful number, since it uses less digits than its factorization.

2223624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149 (or 7145 counting only the distinct ones).

The product of its digits is 1152, while the sum is 21.

The square root of 2223624 is about 1491.1820814374. The cubic root of 2223624 is about 130.5230211438.

Adding to 2223624 its reverse (4263222), we get a palindrome (6486846).

The spelling of 2223624 in words is "two million, two hundred twenty-three thousand, six hundred twenty-four".