2182656 has 120 divisors (see below), whose sum is σ = 6997320. Its totient is φ = 602112.

The previous prime is 2182639. The next prime is 2182657. The reversal of 2182656 is 6562812.

Its product of digits (5760) is a multiple of the sum of its prime factors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2182657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 75250 + ... + 75278.

It is an arithmetic number, because the mean of its divisors is an integer number (58311).

2^2182656 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 2182656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3498660).

2182656 is an abundant number, since it is smaller than the sum of its proper divisors (4814664).

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

2182656 is an equidigital number, since it uses as much as digits as its factorization.

2182656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64 (or 41 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

The square root of 2182656 is about 1477.3814673266. The cubic root of 2182656 is about 129.7164629076.

The spelling of 2182656 in words is "two million, one hundred eighty-two thousand, six hundred fifty-six".