449475905 has 8 divisors (see below), whose sum is σ = 539699112. Its totient is φ = 359362048.

The previous prime is 449475893. The next prime is 449475931. The reversal of 449475905 is 509574944.

It can be written as a sum of positive squares in 4 ways, for example, as 251032336 + 198443569 = 15844^2 + 14087^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 449475905 - 2²⁴ = 432698689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 449475905.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18002 + ... + 34971.

It is an arithmetic number, because the mean of its divisors is an integer number (67462389).

Almost surely, 2^449475905 is an apocalyptic number.

It is an amenable number.

449475905 is a deficient number, since it is larger than the sum of its proper divisors (90223207).

449475905 is a wasteful number, since it uses less digits than its factorization.

449475905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54675.

The product of its (nonzero) digits is 907200, while the sum is 47.

The square root of 449475905 is about 21200.8467991257. The cubic root of 449475905 is about 766.0118213129.

The spelling of 449475905 in words is "four hundred forty-nine million, four hundred seventy-five thousand, nine hundred five".