23224236 has 72 divisors (see below), whose sum is σ = 63737856. Its totient is φ = 6562080.

The previous prime is 23224231. The next prime is 23224241. The reversal of 23224236 is 63242232.

23224236 = 20² + 21² + ... + 411².

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23224231) and next prime (23224241).

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

It is not an unprimeable number, because it can be changed into a prime (23224231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74521 + ... + 74831.

It is an arithmetic number, because the mean of its divisors is an integer number (885248).

Almost surely, 2^23224236 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 23224236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31868928).

23224236 is an abundant number, since it is smaller than the sum of its proper divisors (40513620).

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

23224236 is a wasteful number, since it uses less digits than its factorization.

23224236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 459 (or 450 counting only the distinct ones).

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

The square root of 23224236 is about 4819.1530376198. The cubic root of 23224236 is about 285.3079097553.

Adding to 23224236 its reverse (63242232), we get a palindrome (86466468).

The spelling of 23224236 in words is "twenty-three million, two hundred twenty-four thousand, two hundred thirty-six".