224144449 has 2 divisors, whose sum is σ = 224144450. Its totient is φ = 224144448.

The previous prime is 224144447. The next prime is 224144471. The reversal of 224144449 is 944441422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117332224 + 106812225 = 10832^2 + 10335^2 .

It is a cyclic number.

It is not a de Polignac number, because 224144449 - 2¹ = 224144447 is a prime.

Together with 224144447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (224144441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112072224 + 112072225.

It is an arithmetic number, because the mean of its divisors is an integer number (112072225).

Almost surely, 2^224144449 is an apocalyptic number.

It is an amenable number.

224144449 is a deficient number, since it is larger than the sum of its proper divisors (1).

224144449 is an equidigital number, since it uses as much as digits as its factorization.

224144449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36864, while the sum is 34.

The square root of 224144449 is about 14971.4544717606. The cubic root of 224144449 is about 607.4483116336.

The spelling of 224144449 in words is "two hundred twenty-four million, one hundred forty-four thousand, four hundred forty-nine".