12286620 has 96 divisors (see below), whose sum is σ = 38955840. Its totient is φ = 3214080.

The previous prime is 12286613. The next prime is 12286643. The reversal of 12286620 is 2668221.

12286620 is a `hidden beast` number, since 12 + 28 + 6 + 620 = 666.

It is a super-2 number, since 2×12286620² = 301922062048800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32754 + ... + 33126.

It is an arithmetic number, because the mean of its divisors is an integer number (405790).

Almost surely, 2^12286620 is an apocalyptic number.

12286620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12286620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19477920).

12286620 is an abundant number, since it is smaller than the sum of its proper divisors (26669220).

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

12286620 is a wasteful number, since it uses less digits than its factorization.

12286620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 452 (or 444 counting only the distinct ones).

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

The square root of 12286620 is about 3505.2275247122. The cubic root of 12286620 is about 230.7512924518.

The spelling of 12286620 in words is "twelve million, two hundred eighty-six thousand, six hundred twenty".