20197168 has 20 divisors (see below), whose sum is σ = 39481848. Its totient is φ = 10008320.

The previous prime is 20197159. The next prime is 20197183. The reversal of 20197168 is 86179102.

It is a happy number.

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, 3778 + ... + 7393.

Almost surely, 2^20197168 is an apocalyptic number.

It is an amenable number.

20197168 is a deficient number, since it is larger than the sum of its proper divisors (19284680).

20197168 is a wasteful number, since it uses less digits than its factorization.

20197168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11292 (or 11286 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 20197168 is about 4494.1259439406. The cubic root of 20197168 is about 272.3308402191.

The spelling of 20197168 in words is "twenty million, one hundred ninety-seven thousand, one hundred sixty-eight".