22163624 has 32 divisors (see below), whose sum is σ = 47942400. Its totient is φ = 9408960.

The previous prime is 22163623. The next prime is 22163639. The reversal of 22163624 is 42636122.

It is a junction number, because it is equal to n+sod(n) for n = 22163593 and 22163602.

It is not an unprimeable number, because it can be changed into a prime (22163623) 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, 4289 + ... + 7919.

It is an arithmetic number, because the mean of its divisors is an integer number (1498200).

Almost surely, 2^22163624 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 22163624, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23971200).

22163624 is an abundant number, since it is smaller than the sum of its proper divisors (25778776).

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

22163624 is a wasteful number, since it uses less digits than its factorization.

22163624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3753 (or 3749 counting only the distinct ones).

The product of its digits is 3456, while the sum is 26.

The square root of 22163624 is about 4707.8258251554. The cubic root of 22163624 is about 280.8968859644.

Adding to 22163624 its reverse (42636122), we get a palindrome (64799746).

The spelling of 22163624 in words is "twenty-two million, one hundred sixty-three thousand, six hundred twenty-four".