449474985 has 24 divisors (see below), whose sum is σ = 824920200. Its totient is φ = 225618432.

The previous prime is 449474981. The next prime is 449475029. The reversal of 449474985 is 589474944.

449474985 is a `hidden beast` number, since 4 + 494 + 74 + 9 + 85 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 6456681 + 443018304 = 2541^2 + 21048^2 .

It is not a de Polignac number, because 449474985 - 2² = 449474981 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (449474981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 293010 + ... + 294539.

It is an arithmetic number, because the mean of its divisors is an integer number (34371675).

Almost surely, 2^449474985 is an apocalyptic number.

449474985 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

449474985 is a deficient number, since it is larger than the sum of its proper divisors (375445215).

449474985 is a wasteful number, since it uses less digits than its factorization.

449474985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587577 (or 587574 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 449474985 is about 21200.8251018681. The cubic root of 449474985 is about 766.0112986810.

The spelling of 449474985 in words is "four hundred forty-nine million, four hundred seventy-four thousand, nine hundred eighty-five".