2438243 has 4 divisors (see below), whose sum is σ = 2516928. Its totient is φ = 2359560.

The previous prime is 2438239. The next prime is 2438281. The reversal of 2438243 is 3428342.

2438243 = 167² + 168² + ... + 228².

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3428342 = 2 ⋅1714171.

It is a cyclic number.

It is not a de Polignac number, because 2438243 - 2² = 2438239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2438203) 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, 39296 + ... + 39357.

It is an arithmetic number, because the mean of its divisors is an integer number (629232).

2^2438243 is an apocalyptic number.

2438243 is a deficient number, since it is larger than the sum of its proper divisors (78685).

2438243 is an equidigital number, since it uses as much as digits as its factorization.

2438243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78684.

The product of its digits is 4608, while the sum is 26.

The square root of 2438243 is about 1561.4874319059. The cubic root of 2438243 is about 134.5939881933.

Subtracting 2438243 from its reverse (3428342), we obtain a palindrome (990099).

The spelling of 2438243 in words is "two million, four hundred thirty-eight thousand, two hundred forty-three".