2220056 has 16 divisors (see below), whose sum is σ = 4179600. Its totient is φ = 1105504.

The previous prime is 2220041. The next prime is 2220059. The reversal of 2220056 is 6500222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220059) 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 3 ways as a sum of consecutive naturals, for example, 2486 + ... + 3258.

It is an arithmetic number, because the mean of its divisors is an integer number (261225).

2^2220056 is an apocalyptic number.

It is an amenable number.

2220056 is a deficient number, since it is larger than the sum of its proper divisors (1959544).

2220056 is a wasteful number, since it uses less digits than its factorization.

2220056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138 (or 1134 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 2220056 is about 1489.9852348262. The cubic root of 2220056 is about 130.4531718871.

Adding to 2220056 its reverse (6500222), we get a palindrome (8720278).

The spelling of 2220056 in words is "two million, two hundred twenty thousand, fifty-six".