22223536 has 40 divisors (see below), whose sum is σ = 44595360. Its totient is φ = 10722816.

The previous prime is 22223533. The next prime is 22223557. The reversal of 22223536 is 63532222.

It is a self number, because there is not a number n which added to its sum of digits gives 22223536.

It is not an unprimeable number, because it can be changed into a prime (22223533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61725 + ... + 62083.

It is an arithmetic number, because the mean of its divisors is an integer number (1114884).

Almost surely, 2^22223536 is an apocalyptic number.

It is an amenable number.

22223536 is an abundant number, since it is smaller than the sum of its proper divisors (22371824).

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

22223536 is a wasteful number, since it uses less digits than its factorization.

22223536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 487 counting only the distinct ones).

The product of its digits is 4320, while the sum is 25.

The square root of 22223536 is about 4714.1845530272. The cubic root of 22223536 is about 281.1497620735.

Adding to 22223536 its reverse (63532222), we get a palindrome (85755758).

The spelling of 22223536 in words is "twenty-two million, two hundred twenty-three thousand, five hundred thirty-six".