2442243 has 4 divisors (see below), whose sum is σ = 3256328. Its totient is φ = 1628160.

The previous prime is 2442227. The next prime is 2442263. The reversal of 2442243 is 3422442.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2442243 - 2⁴ = 2442227 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 4 + 4 + 2¹⁷ + 2²¹ + 4⁶ + 3¹¹ .

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2442263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 407038 + ... + 407043.

It is an arithmetic number, because the mean of its divisors is an integer number (814082).

2^2442243 is an apocalyptic number.

2442243 is a deficient number, since it is larger than the sum of its proper divisors (814085).

2442243 is an equidigital number, since it uses as much as digits as its factorization.

2442243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 814084.

The product of its digits is 1536, while the sum is 21.

The square root of 2442243 is about 1562.7677370614. The cubic root of 2442243 is about 134.6675496081.

Adding to 2442243 its reverse (3422442), we get a palindrome (5864685).

The spelling of 2442243 in words is "two million, four hundred forty-two thousand, two hundred forty-three".