22236424 has 32 divisors (see below), whose sum is σ = 49190400. Its totient is φ = 9221760.

The previous prime is 22236413. The next prime is 22236427. The reversal of 22236424 is 42463222.

It is not an unprimeable number, because it can be changed into a prime (22236427) 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, 4669 + ... + 8140.

It is an arithmetic number, because the mean of its divisors is an integer number (1537200).

Almost surely, 2^22236424 is an apocalyptic number.

It is an amenable number.

22236424 is an abundant number, since it is smaller than the sum of its proper divisors (26953976).

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

22236424 is a wasteful number, since it uses less digits than its factorization.

22236424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12853 (or 12849 counting only the distinct ones).

The product of its digits is 4608, while the sum is 25.

The square root of 22236424 is about 4715.5512933272. The cubic root of 22236424 is about 281.2041002298.

Adding to 22236424 its reverse (42463222), we get a palindrome (64699646).

The spelling of 22236424 in words is "twenty-two million, two hundred thirty-six thousand, four hundred twenty-four".