449478245 has 4 divisors (see below), whose sum is σ = 539373900. Its totient is φ = 359582592.

The previous prime is 449478233. The next prime is 449478247. The reversal of 449478245 is 542874944.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 317481124 + 131997121 = 17818^2 + 11489^2 .

It is a cyclic number.

It is not a de Polignac number, because 449478245 - 2¹² = 449474149 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449478245.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449478247) 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 in 3 ways as a sum of consecutive naturals, for example, 44947820 + ... + 44947829.

It is an arithmetic number, because the mean of its divisors is an integer number (134843475).

Almost surely, 2^449478245 is an apocalyptic number.

It is an amenable number.

449478245 is a deficient number, since it is larger than the sum of its proper divisors (89895655).

449478245 is an equidigital number, since it uses as much as digits as its factorization.

449478245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89895654.

The product of its digits is 1290240, while the sum is 47.

The square root of 449478245 is about 21200.9019855288. The cubic root of 449478245 is about 766.0131506126.

The spelling of 449478245 in words is "four hundred forty-nine million, four hundred seventy-eight thousand, two hundred forty-five".