449865785 has 16 divisors (see below), whose sum is σ = 559979904. Its totient is φ = 346695552.

The previous prime is 449865751. The next prime is 449865803. The reversal of 449865785 is 587568944.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 449865785 - 2¹⁶ = 449800249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 449865785.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1364 + ... + 30026.

It is an arithmetic number, because the mean of its divisors is an integer number (34998744).

Almost surely, 2^449865785 is an apocalyptic number.

It is an amenable number.

449865785 is a deficient number, since it is larger than the sum of its proper divisors (110114119).

449865785 is a wasteful number, since it uses less digits than its factorization.

449865785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28784.

The product of its digits is 9676800, while the sum is 56.

The square root of 449865785 is about 21210.0397217921. The cubic root of 449865785 is about 766.2332394696.

The spelling of 449865785 in words is "four hundred forty-nine million, eight hundred sixty-five thousand, seven hundred eighty-five".