449912405 has 4 divisors (see below), whose sum is σ = 539894892. Its totient is φ = 359929920.

The previous prime is 449912377. The next prime is 449912443. The reversal of 449912405 is 504219944.

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 91718929 + 358193476 = 9577^2 + 18926^2 .

It is not a de Polignac number, because 449912405 - 2¹⁰ = 449911381 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44991236 + ... + 44991245.

It is an arithmetic number, because the mean of its divisors is an integer number (134973723).

Almost surely, 2^449912405 is an apocalyptic number.

It is an amenable number.

449912405 is a deficient number, since it is larger than the sum of its proper divisors (89982487).

449912405 is an equidigital number, since it uses as much as digits as its factorization.

449912405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89982486.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 449912405 is about 21211.1387011636. The cubic root of 449912405 is about 766.2597070375.

The spelling of 449912405 in words is "four hundred forty-nine million, nine hundred twelve thousand, four hundred five".