22197892 has 12 divisors (see below), whose sum is σ = 39794076. Its totient is φ = 10828160.

The previous prime is 22197887. The next prime is 22197907. The reversal of 22197892 is 29879122.

It can be written as a sum of positive squares in 2 ways, for example, as 7096896 + 15100996 = 2664^2 + 3886^2 .

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 67513 + ... + 67840.

It is an arithmetic number, because the mean of its divisors is an integer number (3316173).

Almost surely, 2^22197892 is an apocalyptic number.

It is an amenable number.

22197892 is a deficient number, since it is larger than the sum of its proper divisors (17596184).

22197892 is a wasteful number, since it uses less digits than its factorization.

22197892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135398 (or 135396 counting only the distinct ones).

The product of its digits is 36288, while the sum is 40.

The square root of 22197892 is about 4711.4638914036. The cubic root of 22197892 is about 281.0415797777.

The spelling of 22197892 in words is "twenty-two million, one hundred ninety-seven thousand, eight hundred ninety-two".