2243791 has 12 divisors (see below), whose sum is σ = 2532600. Its totient is φ = 1971360.

The previous prime is 2243789. The next prime is 2243797. The reversal of 2243791 is 1973422.

2243791 = T₁₄₃ + T₁₄₄ + ... + T₂₅₃.

It is not a de Polignac number, because 2243791 - 2¹ = 2243789 is a prime.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243797) 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, 14985 + ... + 15133.

It is an arithmetic number, because the mean of its divisors is an integer number (211050).

2^2243791 is an apocalyptic number.

2243791 is a deficient number, since it is larger than the sum of its proper divisors (288809).

2243791 is a wasteful number, since it uses less digits than its factorization.

2243791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234 (or 197 counting only the distinct ones).

The product of its digits is 3024, while the sum is 28.

The square root of 2243791 is about 1497.9289035198. The cubic root of 2243791 is about 130.9164239749.

The spelling of 2243791 in words is "two million, two hundred forty-three thousand, seven hundred ninety-one".