2265822 has 48 divisors (see below), whose sum is σ = 5529888. Its totient is φ = 665280.

The previous prime is 2265797. The next prime is 2265841. The reversal of 2265822 is 2285622.

2265822 is a `hidden beast` number, since 2 + 2 + 658 + 2 + 2 = 666.

2265822 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5172 + ... + 5592.

It is an arithmetic number, because the mean of its divisors is an integer number (115206).

2^2265822 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2265822, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2764944).

2265822 is an abundant number, since it is smaller than the sum of its proper divisors (3264066).

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

2265822 is a wasteful number, since it uses less digits than its factorization.

2265822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 465 (or 462 counting only the distinct ones).

The product of its digits is 3840, while the sum is 27.

The square root of 2265822 is about 1505.2647607647. The cubic root of 2265822 is about 131.3435034397.

The spelling of 2265822 in words is "two million, two hundred sixty-five thousand, eight hundred twenty-two".