448405285 has 4 divisors (see below), whose sum is σ = 538086348. Its totient is φ = 358724224.

The previous prime is 448405283. The next prime is 448405289. The reversal of 448405285 is 582504844.

It is a happy number.

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 199996164 + 248409121 = 14142^2 + 15761^2 .

It is a cyclic number.

It is not a de Polignac number, because 448405285 - 2¹ = 448405283 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448405283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44840524 + ... + 44840533.

It is an arithmetic number, because the mean of its divisors is an integer number (134521587).

Almost surely, 2^448405285 is an apocalyptic number.

It is an amenable number.

448405285 is a deficient number, since it is larger than the sum of its proper divisors (89681063).

448405285 is an equidigital number, since it uses as much as digits as its factorization.

448405285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89681062.

The product of its (nonzero) digits is 204800, while the sum is 40.

The square root of 448405285 is about 21175.5822824309. The cubic root of 448405285 is about 765.4031423484.

The spelling of 448405285 in words is "four hundred forty-eight million, four hundred five thousand, two hundred eighty-five".