2271843 has 12 divisors (see below), whose sum is σ = 3750448. Its totient is φ = 1298160.

The previous prime is 2271827. The next prime is 2271859. The reversal of 2271843 is 3481722.

It is an interprime number because it is at equal distance from previous prime (2271827) and next prime (2271859).

It is not a de Polignac number, because 2271843 - 2⁴ = 2271827 is a prime.

It is a super-2 number, since 2×2271843² = 10322541233298, which contains 22 as substring.

It is a Duffinian number.

2271843 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2271883) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17968 + ... + 18093.

2^2271843 is an apocalyptic number.

2271843 is a deficient number, since it is larger than the sum of its proper divisors (1478605).

2271843 is a wasteful number, since it uses less digits than its factorization.

2271843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36074 (or 36071 counting only the distinct ones).

The product of its digits is 2688, while the sum is 27.

The square root of 2271843 is about 1507.2634142710. The cubic root of 2271843 is about 131.4597408407.

The spelling of 2271843 in words is "two million, two hundred seventy-one thousand, eight hundred forty-three".