2205756 has 36 divisors (see below), whose sum is σ = 6372912. Its totient is φ = 630144.

The previous prime is 2205719. The next prime is 2205761. The reversal of 2205756 is 6575022.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4125 + ... + 4628.

2^2205756 is an apocalyptic number.

It is an amenable number.

2205756 is an abundant number, since it is smaller than the sum of its proper divisors (4167156).

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

2205756 is a wasteful number, since it uses less digits than its factorization.

2205756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770 (or 8765 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 2205756 is about 1485.1787771174. The cubic root of 2205756 is about 130.1724732452.

The spelling of 2205756 in words is "two million, two hundred five thousand, seven hundred fifty-six".