12020808 has 64 divisors (see below), whose sum is σ = 31518720. Its totient is φ = 3816000.

The previous prime is 12020759. The next prime is 12020851. The reversal of 12020808 is 80802021.

12020808 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79533 + ... + 79683.

It is an arithmetic number, because the mean of its divisors is an integer number (492480).

Almost surely, 2^12020808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12020808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15759360).

12020808 is an abundant number, since it is smaller than the sum of its proper divisors (19497912).

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

12020808 is a wasteful number, since it uses less digits than its factorization.

12020808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298 (or 294 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 21.

The square root of 12020808 is about 3467.1036904021. The cubic root of 12020808 is about 229.0751010646.

Adding to 12020808 its reverse (80802021), we get a palindrome (92822829).

The spelling of 12020808 in words is "twelve million, twenty thousand, eight hundred eight".