23236224 has 64 divisors (see below), whose sum is σ = 67344480. Its totient is φ = 7040000.

The previous prime is 23236223. The next prime is 23236243. The reversal of 23236224 is 42263232.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a junction number, because it is equal to n+sod(n) for n = 23236194 and 23236203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23236223) 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, 1474 + ... + 6974.

Almost surely, 2^23236224 is an apocalyptic number.

23236224 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 23236224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33672240).

23236224 is an abundant number, since it is smaller than the sum of its proper divisors (44108256).

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

23236224 is a wasteful number, since it uses less digits than its factorization.

23236224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5529 (or 5517 counting only the distinct ones).

The product of its digits is 3456, while the sum is 24.

The square root of 23236224 is about 4820.3966641761. The cubic root of 23236224 is about 285.3569918563.

Adding to 23236224 its reverse (42263232), we get a palindrome (65499456).

The spelling of 23236224 in words is "twenty-three million, two hundred thirty-six thousand, two hundred twenty-four".