2243831 has 4 divisors (see below), whose sum is σ = 2247000. Its totient is φ = 2240664.

The previous prime is 2243821. The next prime is 2243833. The reversal of 2243831 is 1383422.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2243831 - 2¹⁸ = 1981687 is a prime.

It is a super-2 number, since 2×2243831² = 10069555113122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2243797 and 2243806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243833) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20 + ... + 2118.

It is an arithmetic number, because the mean of its divisors is an integer number (561750).

2^2243831 is an apocalyptic number.

2243831 is a deficient number, since it is larger than the sum of its proper divisors (3169).

2243831 is a wasteful number, since it uses less digits than its factorization.

2243831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3168.

The product of its digits is 1152, while the sum is 23.

The square root of 2243831 is about 1497.9422552288. The cubic root of 2243831 is about 130.9172019181.

The spelling of 2243831 in words is "two million, two hundred forty-three thousand, eight hundred thirty-one".