22236536 has 32 divisors (see below), whose sum is σ = 50160000. Its totient is φ = 9027936.

The previous prime is 22236509. The next prime is 22236541. The reversal of 22236536 is 63563222.

It is a junction number, because it is equal to n+sod(n) for n = 22236499 and 22236508.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 9386 + ... + 11513.

It is an arithmetic number, because the mean of its divisors is an integer number (1567500).

Almost surely, 2^22236536 is an apocalyptic number.

It is an amenable number.

22236536 is an abundant number, since it is smaller than the sum of its proper divisors (27923464).

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

22236536 is a wasteful number, since it uses less digits than its factorization.

22236536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20931 (or 20927 counting only the distinct ones).

The product of its digits is 12960, while the sum is 29.

The square root of 22236536 is about 4715.5631689121. The cubic root of 22236536 is about 281.2045723501.

Adding to 22236536 its reverse (63563222), we get a palindrome (85799758).

The spelling of 22236536 in words is "twenty-two million, two hundred thirty-six thousand, five hundred thirty-six".