2544839 has 4 divisors (see below), whose sum is σ = 2776200. Its totient is φ = 2313480.

The previous prime is 2544833. The next prime is 2544851. The reversal of 2544839 is 9384452.

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

It is a cyclic number.

It is not a de Polignac number, because 2544839 - 2¹² = 2540743 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 5⁹ + 4³ + 4⁵ + 8 + 3¹² + 9⁵ .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2544799 and 2544808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2544833) 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, 115664 + ... + 115685.

It is an arithmetic number, because the mean of its divisors is an integer number (694050).

2^2544839 is an apocalyptic number.

2544839 is a deficient number, since it is larger than the sum of its proper divisors (231361).

2544839 is a wasteful number, since it uses less digits than its factorization.

2544839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231360.

The product of its digits is 34560, while the sum is 35.

The square root of 2544839 is about 1595.2551520055. The cubic root of 2544839 is about 136.5274893538.

The spelling of 2544839 in words is "two million, five hundred forty-four thousand, eight hundred thirty-nine".