20030886 has 12 divisors (see below), whose sum is σ = 43400292. Its totient is φ = 6676956.

The previous prime is 20030849. The next prime is 20030893. The reversal of 20030886 is 68803002.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 556396 + ... + 556431.

It is an arithmetic number, because the mean of its divisors is an integer number (3616691).

Almost surely, 2^20030886 is an apocalyptic number.

20030886 is an abundant number, since it is smaller than the sum of its proper divisors (23369406).

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

20030886 is a wasteful number, since it uses less digits than its factorization.

20030886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112835 (or 1112832 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 20030886 is about 4475.5877826270. The cubic root of 20030886 is about 271.5814189641.

Adding to 20030886 its reverse (68803002), we get a palindrome (88833888).

The spelling of 20030886 in words is "twenty million, thirty thousand, eight hundred eighty-six".