254944439 has 2 divisors, whose sum is σ = 254944440. Its totient is φ = 254944438.

The previous prime is 254944411. The next prime is 254944453. The reversal of 254944439 is 934449452.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-254944439 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 254944439.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (254944939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 127472219 + 127472220.

It is an arithmetic number, because the mean of its divisors is an integer number (127472220).

Almost surely, 2^254944439 is an apocalyptic number.

254944439 is a deficient number, since it is larger than the sum of its proper divisors (1).

254944439 is an equidigital number, since it uses as much as digits as its factorization.

254944439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 622080, while the sum is 44.

The square root of 254944439 is about 15966.9796455059. The cubic root of 254944439 is about 634.0865109320.

The spelling of 254944439 in words is "two hundred fifty-four million, nine hundred forty-four thousand, four hundred thirty-nine".