22189824 has 54 divisors (see below), whose sum is σ = 63985376. Its totient is φ = 7395840.

The previous prime is 22189819. The next prime is 22189829. The reversal of 22189824 is 42898122.

It is an interprime number because it is at equal distance from previous prime (22189819) and next prime (22189829).

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22189829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2512 + ... + 7119.

Almost surely, 2^22189824 is an apocalyptic number.

22189824 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

22189824 is an abundant number, since it is smaller than the sum of its proper divisors (41795552).

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

22189824 is an equidigital number, since it uses as much as digits as its factorization.

22189824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9653 (or 9636 counting only the distinct ones).

The product of its digits is 18432, while the sum is 36.

The square root of 22189824 is about 4710.6076041207. The cubic root of 22189824 is about 281.0075267210.

The spelling of 22189824 in words is "twenty-two million, one hundred eighty-nine thousand, eight hundred twenty-four".