2243836 has 24 divisors (see below), whose sum is σ = 4530176. Its totient is φ = 952560.

The previous prime is 2243833. The next prime is 2243851. The reversal of 2243836 is 6383422.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a d-powerful number, because it can be written as 2 + 2¹⁷ + 4¹⁰ + 3¹² + 8 + 3¹² + 6⁴ .

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3241 + ... + 3871.

2^2243836 is an apocalyptic number.

It is an amenable number.

2243836 is an abundant number, since it is smaller than the sum of its proper divisors (2286340).

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

2243836 is a wasteful number, since it uses less digits than its factorization.

2243836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 769 (or 767 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 2243836 is about 1497.9439241841. The cubic root of 2243836 is about 130.9172991603.

The spelling of 2243836 in words is "two million, two hundred forty-three thousand, eight hundred thirty-six".