20185168 has 20 divisors (see below), whose sum is σ = 40809888. Its totient is φ = 9653600.

The previous prime is 20185159. The next prime is 20185177. The reversal of 20185168 is 86158102.

It is an interprime number because it is at equal distance from previous prime (20185159) and next prime (20185177).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27058 + ... + 27793.

Almost surely, 2^20185168 is an apocalyptic number.

It is an amenable number.

20185168 is an abundant number, since it is smaller than the sum of its proper divisors (20624720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20185168 is a wasteful number, since it uses less digits than its factorization.

20185168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54882 (or 54876 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 31.

The square root of 20185168 is about 4492.7906695060. The cubic root of 20185168 is about 272.2768950734.

The spelling of 20185168 in words is "twenty million, one hundred eighty-five thousand, one hundred sixty-eight".