2183556 has 48 divisors (see below), whose sum is σ = 5485760. Its totient is φ = 673920.

The previous prime is 2183543. The next prime is 2183557. The reversal of 2183556 is 6553812.

It is a d-powerful number, because it can be written as 2²¹ + 1 + 8⁵ + 3⁶ + 5⁵ + 5⁵ + 6⁶ .

2183556 is an undulating number in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2183557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13830 + ... + 13986.

2^2183556 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 2183556, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2742880).

2183556 is an abundant number, since it is smaller than the sum of its proper divisors (3302204).

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

2183556 is a wasteful number, since it uses less digits than its factorization.

2183556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244 (or 242 counting only the distinct ones).

The product of its digits is 7200, while the sum is 30.

The square root of 2183556 is about 1477.6860288979. The cubic root of 2183556 is about 129.7342896248.

The spelling of 2183556 in words is "two million, one hundred eighty-three thousand, five hundred fifty-six".