12020286 has 8 divisors (see below), whose sum is σ = 24040584. Its totient is φ = 4006760.

The previous prime is 12020249. The next prime is 12020299. The reversal of 12020286 is 68202021.

It is a sphenic number, since it is the product of 3 distinct primes.

12020286 is an admirable number.

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 3 ways as a sum of consecutive naturals, for example, 1001685 + ... + 1001696.

It is an arithmetic number, because the mean of its divisors is an integer number (3005073).

Almost surely, 2^12020286 is an apocalyptic number.

12020286 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

12020286 is a wasteful number, since it uses less digits than its factorization.

12020286 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2003386.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 12020286 is about 3467.0284106133. The cubic root of 12020286 is about 229.0717851773.

The spelling of 12020286 in words is "twelve million, twenty thousand, two hundred eighty-six".