2220616 has 8 divisors (see below), whose sum is σ = 4163670. Its totient is φ = 1110304.

The previous prime is 2220553. The next prime is 2220643. The reversal of 2220616 is 6160222.

2220616 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 1664100 + 556516 = 1290^2 + 746^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2220616² = 9862270838912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2220593 and 2220602.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138781 + ... + 138796.

2^2220616 is an apocalyptic number.

It is an amenable number.

2220616 is a deficient number, since it is larger than the sum of its proper divisors (1943054).

2220616 is a wasteful number, since it uses less digits than its factorization.

2220616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277583 (or 277579 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2220616 is about 1490.1731443024. The cubic root of 2220616 is about 130.4641397238.

Adding to 2220616 its reverse (6160222), we get a palindrome (8380838).

It can be divided in two parts, 22206 and 16, that added together give a palindrome (22222).

The spelling of 2220616 in words is "two million, two hundred twenty thousand, six hundred sixteen".