22436250 has 80 divisors (see below), whose sum is σ = 58181376. Its totient is φ = 5760000.

The previous prime is 22436231. The next prime is 22436257. The reversal of 22436250 is 5263422.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22436250.

It is not an unprimeable number, because it can be changed into a prime (22436257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 116154 + ... + 116346.

Almost surely, 2^22436250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22436250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29090688).

22436250 is an abundant number, since it is smaller than the sum of its proper divisors (35745126).

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

22436250 is a wasteful number, since it uses less digits than its factorization.

22436250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 249 (or 234 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 22436250 is about 4736.6918835829. The cubic root of 22436250 is about 282.0439295781.

Adding to 22436250 its reverse (5263422), we get a palindrome (27699672).

The spelling of 22436250 in words is "twenty-two million, four hundred thirty-six thousand, two hundred fifty".