2656216 has 16 divisors (see below), whose sum is σ = 5273640. Its totient is φ = 1249920.

The previous prime is 2656211. The next prime is 2656229. The reversal of 2656216 is 6126562.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2656211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9630 + ... + 9901.

2^2656216 is an apocalyptic number.

It is an amenable number.

2656216 is a deficient number, since it is larger than the sum of its proper divisors (2617424).

2656216 is a wasteful number, since it uses less digits than its factorization.

2656216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19554 (or 19550 counting only the distinct ones).

The product of its digits is 4320, while the sum is 28.

The square root of 2656216 is about 1629.7901705434. The cubic root of 2656216 is about 138.4908655195.

The spelling of 2656216 in words is "two million, six hundred fifty-six thousand, two hundred sixteen".