22197434 has 16 divisors (see below), whose sum is σ = 40056000. Its totient is φ = 9012384.

The previous prime is 22197431. The next prime is 22197443. The reversal of 22197434 is 43479122.

It is a self number, because there is not a number n which added to its sum of digits gives 22197434.

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 7 ways as a sum of consecutive naturals, for example, 41459 + ... + 41990.

It is an arithmetic number, because the mean of its divisors is an integer number (2503500).

Almost surely, 2^22197434 is an apocalyptic number.

22197434 is a deficient number, since it is larger than the sum of its proper divisors (17858566).

22197434 is a wasteful number, since it uses less digits than its factorization.

22197434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83477.

The product of its digits is 12096, while the sum is 32.

The square root of 22197434 is about 4711.4152863020. The cubic root of 22197434 is about 281.0396468925.

The spelling of 22197434 in words is "twenty-two million, one hundred ninety-seven thousand, four hundred thirty-four".