2243937 has 4 divisors (see below), whose sum is σ = 2991920. Its totient is φ = 1495956.

The previous prime is 2243911. The next prime is 2243959. The reversal of 2243937 is 7393422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2243937 - 2⁷ = 2243809 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2243987) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 373987 + ... + 373992.

It is an arithmetic number, because the mean of its divisors is an integer number (747980).

2^2243937 is an apocalyptic number.

It is an amenable number.

2243937 is a deficient number, since it is larger than the sum of its proper divisors (747983).

2243937 is an equidigital number, since it uses as much as digits as its factorization.

2243937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 747982.

The product of its digits is 9072, while the sum is 30.

The square root of 2243937 is about 1497.9776366822. The cubic root of 2243937 is about 130.9192634228.

It can be divided in two parts, 224393 and 7, that multiplied together give a palindrome (1570751).

The spelling of 2243937 in words is "two million, two hundred forty-three thousand, nine hundred thirty-seven".