2243742 has 32 divisors (see below), whose sum is σ = 4769280. Its totient is φ = 702240.

The previous prime is 2243741. The next prime is 2243743. The reversal of 2243742 is 2473422.

2243742 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2243741) and next prime (2243743).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2243741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9684 + ... + 9912.

It is an arithmetic number, because the mean of its divisors is an integer number (149040).

2^2243742 is an apocalyptic number.

2243742 is an abundant number, since it is smaller than the sum of its proper divisors (2525538).

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

2243742 is a wasteful number, since it uses less digits than its factorization.

2243742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328.

The product of its digits is 2688, while the sum is 24.

The square root of 2243742 is about 1497.9125475140. The cubic root of 2243742 is about 130.9154709818.

The spelling of 2243742 in words is "two million, two hundred forty-three thousand, seven hundred forty-two".