12056820 has 48 divisors (see below), whose sum is σ = 34677888. Its totient is φ = 3127680.

The previous prime is 12056801. The next prime is 12056831. The reversal of 12056820 is 2865021.

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, 496 + ... + 4935.

It is an arithmetic number, because the mean of its divisors is an integer number (722456).

Almost surely, 2^12056820 is an apocalyptic number.

12056820 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 12056820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17338944).

12056820 is an abundant number, since it is smaller than the sum of its proper divisors (22621068).

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

12056820 is a wasteful number, since it uses less digits than its factorization.

12056820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5480 (or 5478 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

The square root of 12056820 is about 3472.2931903859. The cubic root of 12056820 is about 229.3036278077.

The spelling of 12056820 in words is "twelve million, fifty-six thousand, eight hundred twenty".