2271830 has 32 divisors (see below), whose sum is σ = 4700160. Its totient is φ = 781920.

The previous prime is 2271827. The next prime is 2271859. The reversal of 2271830 is 381722.

It is a super-2 number, since 2×2271830² = 10322423097800, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2271796 and 2271805.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1547 + ... + 2633.

It is an arithmetic number, because the mean of its divisors is an integer number (146880).

2^2271830 is an apocalyptic number.

2271830 is an abundant number, since it is smaller than the sum of its proper divisors (2428330).

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

2271830 is a wasteful number, since it uses less digits than its factorization.

2271830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1124.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 2271830 is about 1507.2591018136. The cubic root of 2271830 is about 131.4594900928.

The spelling of 2271830 in words is "two million, two hundred seventy-one thousand, eight hundred thirty".