22436244 has 24 divisors (see below), whose sum is σ = 58168320. Its totient is φ = 7478712.

The previous prime is 22436231. The next prime is 22436257. The reversal of 22436244 is 44263422.

It is an interprime number because it is at equal distance from previous prime (22436231) and next prime (22436257).

It is a Harshad number since it is a multiple of its sum of digits (27).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103764 + ... + 103979.

It is an arithmetic number, because the mean of its divisors is an integer number (2423680).

Almost surely, 2^22436244 is an apocalyptic number.

It is an amenable number.

22436244 is an abundant number, since it is smaller than the sum of its proper divisors (35732076).

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

22436244 is a wasteful number, since it uses less digits than its factorization.

22436244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207756 (or 207748 counting only the distinct ones).

The product of its digits is 9216, while the sum is 27.

The square root of 22436244 is about 4736.6912502294. The cubic root of 22436244 is about 282.0439044363.

Adding to 22436244 its reverse (44263422), we get a palindrome (66699666).

The spelling of 22436244 in words is "twenty-two million, four hundred thirty-six thousand, two hundred forty-four".