20864068 has 24 divisors (see below), whose sum is σ = 37409792. Its totient is φ = 10178784.

The previous prime is 20864047. The next prime is 20864087. The reversal of 20864068 is 86046802.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33730 + ... + 34342.

Almost surely, 2^20864068 is an apocalyptic number.

It is an amenable number.

20864068 is a deficient number, since it is larger than the sum of its proper divisors (16545724).

20864068 is a wasteful number, since it uses less digits than its factorization.

20864068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811 (or 809 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 20864068 is about 4567.7202191027. The cubic root of 20864068 is about 275.2958491001.

It can be divided in two parts, 2086 and 4068, that multiplied together give a palindrome (8485848).

The spelling of 20864068 in words is "twenty million, eight hundred sixty-four thousand, sixty-eight".