2271822 has 16 divisors (see below), whose sum is σ = 5192832. Its totient is φ = 649080.

The previous prime is 2271821. The next prime is 2271827. The reversal of 2271822 is 2281722.

It is a happy number.

It is a super-2 number, since 2×2271822² = 10322350399368, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2271792 and 2271801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2271821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27004 + ... + 27087.

It is an arithmetic number, because the mean of its divisors is an integer number (324552).

2^2271822 is an apocalyptic number.

2271822 is an abundant number, since it is smaller than the sum of its proper divisors (2921010).

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

2271822 is a wasteful number, since it uses less digits than its factorization.

2271822 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54103.

The product of its digits is 896, while the sum is 24.

The square root of 2271822 is about 1507.2564479875. The cubic root of 2271822 is about 131.4593357859.

The spelling of 2271822 in words is "two million, two hundred seventy-one thousand, eight hundred twenty-two".