2308239 has 6 divisors (see below), whose sum is σ = 3334136. Its totient is φ = 1538820.

The previous prime is 2308237. The next prime is 2308247. The reversal of 2308239 is 9328032.

2308239 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2308239 - 2¹ = 2308237 is a prime.

It is a super-2 number, since 2×2308239² = 10655934562242, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

2308239 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2308231) 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 5 ways as a sum of consecutive naturals, for example, 128227 + ... + 128244.

2^2308239 is an apocalyptic number.

2308239 is a deficient number, since it is larger than the sum of its proper divisors (1025897).

2308239 is a wasteful number, since it uses less digits than its factorization.

2308239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256477 (or 256474 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 27.

The square root of 2308239 is about 1519.2889784370. The cubic root of 2308239 is about 132.1580407333.

The spelling of 2308239 in words is "two million, three hundred eight thousand, two hundred thirty-nine".