20008212 has 48 divisors (see below), whose sum is σ = 53596032. Its totient is φ = 5690880.

The previous prime is 20008211. The next prime is 20008217. The reversal of 20008212 is 21280002.

It is a junction number, because it is equal to n+sod(n) for n = 20008191 and 20008200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20008211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25912 + ... + 26672.

It is an arithmetic number, because the mean of its divisors is an integer number (1116584).

Almost surely, 2^20008212 is an apocalyptic number.

It is an amenable number.

20008212 is an abundant number, since it is smaller than the sum of its proper divisors (33587820).

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

20008212 is a wasteful number, since it uses less digits than its factorization.

20008212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1086 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

The square root of 20008212 is about 4473.0539902845. The cubic root of 20008212 is about 271.4789079050.

Adding to 20008212 its reverse (21280002), we get a palindrome (41288214).

The spelling of 20008212 in words is "twenty million, eight thousand, two hundred twelve".