22197436 has 12 divisors (see below), whose sum is σ = 39002040. Its totient is φ = 11054000.

The previous prime is 22197431. The next prime is 22197443. The reversal of 22197436 is 63479122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22197431) 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 3 ways as a sum of consecutive naturals, for example, 10051 + ... + 12058.

It is an arithmetic number, because the mean of its divisors is an integer number (3250170).

Almost surely, 2^22197436 is an apocalyptic number.

It is an amenable number.

22197436 is a deficient number, since it is larger than the sum of its proper divisors (16804604).

22197436 is a wasteful number, since it uses less digits than its factorization.

22197436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22364 (or 22362 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 22197436 is about 4711.4154985524. The cubic root of 22197436 is about 281.0396553331.

The spelling of 22197436 in words is "twenty-two million, one hundred ninety-seven thousand, four hundred thirty-six".