22636198 has 24 divisors (see below), whose sum is σ = 37064088. Its totient is φ = 10363392.

The previous prime is 22636181. The next prime is 22636199. The reversal of 22636198 is 89163622.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22636199) 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 11 ways as a sum of consecutive naturals, for example, 65061 + ... + 65407.

It is an arithmetic number, because the mean of its divisors is an integer number (1544337).

Almost surely, 2^22636198 is an apocalyptic number.

22636198 is a deficient number, since it is larger than the sum of its proper divisors (14427890).

22636198 is a wasteful number, since it uses less digits than its factorization.

22636198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568 (or 555 counting only the distinct ones).

The product of its digits is 31104, while the sum is 37.

The square root of 22636198 is about 4757.7513596236. The cubic root of 22636198 is about 282.8792952513.

The spelling of 22636198 in words is "twenty-two million, six hundred thirty-six thousand, one hundred ninety-eight".