2544239 has 2 divisors, whose sum is σ = 2544240. Its totient is φ = 2544238.

The previous prime is 2544229. The next prime is 2544247. The reversal of 2544239 is 9324452.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2544239 - 2¹⁶ = 2478703 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 2⁷ + 5⁹ + 4³ + 4⁵ + 2¹⁹ + 3¹⁰ + 9⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2544209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1272119 + 1272120.

It is an arithmetic number, because the mean of its divisors is an integer number (1272120).

2^2544239 is an apocalyptic number.

2544239 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544239 is an equidigital number, since it uses as much as digits as its factorization.

2544239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 8640, while the sum is 29.

The square root of 2544239 is about 1595.0670832288. The cubic root of 2544239 is about 136.5167587558.

The spelling of 2544239 in words is "two million, five hundred forty-four thousand, two hundred thirty-nine".