20047168 has 28 divisors (see below), whose sum is σ = 41513760. Its totient is φ = 9587072.

The previous prime is 20047151. The next prime is 20047177. The reversal of 20047168 is 86174002.

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, 5338 + ... + 8281.

Almost surely, 2^20047168 is an apocalyptic number.

It is an amenable number.

20047168 is an abundant number, since it is smaller than the sum of its proper divisors (21466592).

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

20047168 is a wasteful number, since it uses less digits than its factorization.

20047168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13654 (or 13644 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 20047168 is about 4477.4063920980. The cubic root of 20047168 is about 271.6549835433.

The spelling of 20047168 in words is "twenty million, forty-seven thousand, one hundred sixty-eight".