2270656 has 28 divisors (see below), whose sum is σ = 4773168. Its totient is φ = 1068032.

The previous prime is 2270641. The next prime is 2270659. The reversal of 2270656 is 6560722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2270659) 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, 45 + ... + 2131.

2^2270656 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 2270656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2386584).

2270656 is an abundant number, since it is smaller than the sum of its proper divisors (2502512).

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

2270656 is a wasteful number, since it uses less digits than its factorization.

2270656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 2270656 is about 1506.8696028522. The cubic root of 2270656 is about 131.4368416796.

It can be divided in two parts, 2270 and 656, that added together give a triangular number (2926 = T₇₆).

The spelling of 2270656 in words is "two million, two hundred seventy thousand, six hundred fifty-six".