2544739 has 2 divisors, whose sum is σ = 2544740. Its totient is φ = 2544738.

The previous prime is 2544733. The next prime is 2544757. The reversal of 2544739 is 9374452.

2544739 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2544739 is a prime.

It is a plaindrome in base 11.

It is not a weakly prime, because it can be changed into another prime (2544733) 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 as a sum of consecutive naturals, namely, 1272369 + 1272370.

It is an arithmetic number, because the mean of its divisors is an integer number (1272370).

2^2544739 is an apocalyptic number.

2544739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544739 is an equidigital number, since it uses as much as digits as its factorization.

2544739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 30240, while the sum is 34.

The square root of 2544739 is about 1595.2238087491. The cubic root of 2544739 is about 136.5257010379.

The spelling of 2544739 in words is "two million, five hundred forty-four thousand, seven hundred thirty-nine".