2439243 has 6 divisors (see below), whose sum is σ = 3523364. Its totient is φ = 1626156.

The previous prime is 2439221. The next prime is 2439247. The reversal of 2439243 is 3429342.

It is a happy number.

It is not a de Polignac number, because 2439243 - 2⁶ = 2439179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2439247) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135505 + ... + 135522.

2^2439243 is an apocalyptic number.

2439243 is a deficient number, since it is larger than the sum of its proper divisors (1084121).

2439243 is a wasteful number, since it uses less digits than its factorization.

2439243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271033 (or 271030 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 2439243 is about 1561.8076065892. The cubic root of 2439243 is about 134.6123860850.

Subtracting 2439243 from its reverse (3429342), we obtain a palindrome (990099).

The spelling of 2439243 in words is "two million, four hundred thirty-nine thousand, two hundred forty-three".