20845068 has 12 divisors (see below), whose sum is σ = 48638520. Its totient is φ = 6948352.

The previous prime is 20845057. The next prime is 20845073. The reversal of 20845068 is 86054802.

It is a tau number, because it is divible by the number of its divisors (12).

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, 868533 + ... + 868556.

It is an arithmetic number, because the mean of its divisors is an integer number (4053210).

Almost surely, 2^20845068 is an apocalyptic number.

It is an amenable number.

20845068 is an abundant number, since it is smaller than the sum of its proper divisors (27793452).

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

20845068 is a wasteful number, since it uses less digits than its factorization.

20845068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1737096 (or 1737094 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 20845068 is about 4565.6399332405. The cubic root of 20845068 is about 275.2122570652.

The spelling of 20845068 in words is "twenty million, eight hundred forty-five thousand, sixty-eight".