2530839 has 4 divisors (see below), whose sum is σ = 3374456. Its totient is φ = 1687224.

The previous prime is 2530831. The next prime is 2530867. The reversal of 2530839 is 9380352.

It is a happy number.

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

It is not a de Polignac number, because 2530839 - 2³ = 2530831 is a prime.

It is a D-number.

It is a Duffinian number.

2530839 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2530831) 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, 421804 + ... + 421809.

It is an arithmetic number, because the mean of its divisors is an integer number (843614).

2^2530839 is an apocalyptic number.

2530839 is a deficient number, since it is larger than the sum of its proper divisors (843617).

2530839 is an equidigital number, since it uses as much as digits as its factorization.

2530839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843616.

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 2530839 is about 1590.8610875875. The cubic root of 2530839 is about 136.2766678996.

The spelling of 2530839 in words is "two million, five hundred thirty thousand, eight hundred thirty-nine".