249284449 has 2 divisors, whose sum is σ = 249284450. Its totient is φ = 249284448.

The previous prime is 249284437. The next prime is 249284489. The reversal of 249284449 is 944482942.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244140625 + 5143824 = 15625^2 + 2268^2 .

It is a cyclic number.

It is not a de Polignac number, because 249284449 - 2¹¹ = 249282401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 249284399 and 249284408.

It is not a weakly prime, because it can be changed into another prime (249284489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124642224 + 124642225.

It is an arithmetic number, because the mean of its divisors is an integer number (124642225).

Almost surely, 2^249284449 is an apocalyptic number.

It is an amenable number.

249284449 is a deficient number, since it is larger than the sum of its proper divisors (1).

249284449 is an equidigital number, since it uses as much as digits as its factorization.

249284449 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 46.

The square root of 249284449 is about 15788.7443769288. The cubic root of 249284449 is about 629.3589254369.

The spelling of 249284449 in words is "two hundred forty-nine million, two hundred eighty-four thousand, four hundred forty-nine".