449724173 has 2 divisors, whose sum is σ = 449724174. Its totient is φ = 449724172.

The previous prime is 449724131. The next prime is 449724193. The reversal of 449724173 is 371427944.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 403728649 + 45995524 = 20093^2 + 6782^2 .

It is a cyclic number.

It is not a de Polignac number, because 449724173 - 2¹⁶ = 449658637 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449724173.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (449724113) 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, 224862086 + 224862087.

It is an arithmetic number, because the mean of its divisors is an integer number (224862087).

Almost surely, 2^449724173 is an apocalyptic number.

It is an amenable number.

449724173 is a deficient number, since it is larger than the sum of its proper divisors (1).

449724173 is an equidigital number, since it uses as much as digits as its factorization.

449724173 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 169344, while the sum is 41.

The square root of 449724173 is about 21206.7011343113. The cubic root of 449724173 is about 766.1528308879.

The spelling of 449724173 in words is "four hundred forty-nine million, seven hundred twenty-four thousand, one hundred seventy-three".