2544391 has 2 divisors, whose sum is σ = 2544392. Its totient is φ = 2544390.

The previous prime is 2544383. The next prime is 2544403. The reversal of 2544391 is 1934452.

2544391 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 not a de Polignac number, because 2544391 - 2³ = 2544383 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2544301) 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, 1272195 + 1272196.

It is an arithmetic number, because the mean of its divisors is an integer number (1272196).

2^2544391 is an apocalyptic number.

2544391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2544391 is an equidigital number, since it uses as much as digits as its factorization.

2544391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4320, while the sum is 28.

The square root of 2544391 is about 1595.1147294160. The cubic root of 2544391 is about 136.5194773335.

The spelling of 2544391 in words is "two million, five hundred forty-four thousand, three hundred ninety-one".