2275806 has 32 divisors (see below), whose sum is σ = 4959360. Its totient is φ = 692064.

The previous prime is 2275771. The next prime is 2275813. The reversal of 2275806 is 6085722.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12625 + ... + 12803.

It is an arithmetic number, because the mean of its divisors is an integer number (154980).

2^2275806 is an apocalyptic number.

2275806 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 2275806, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2479680).

2275806 is an abundant number, since it is smaller than the sum of its proper divisors (2683554).

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

2275806 is a wasteful number, since it uses less digits than its factorization.

2275806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360.

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2275806 is about 1508.5774756372. The cubic root of 2275806 is about 131.5361358376.

It can be divided in two parts, 2275 and 806, that added together give a triangular number (3081 = T₇₈).

The spelling of 2275806 in words is "two million, two hundred seventy-five thousand, eight hundred six".