449784785 has 4 divisors (see below), whose sum is σ = 539741748. Its totient is φ = 359827824.

The previous prime is 449784749. The next prime is 449784799. The reversal of 449784785 is 587487944.

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 92083216 + 357701569 = 9596^2 + 18913^2 .

It is a cyclic number.

It is not a de Polignac number, because 449784785 - 2⁸ = 449784529 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 449784785.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44978474 + ... + 44978483.

It is an arithmetic number, because the mean of its divisors is an integer number (134935437).

Almost surely, 2^449784785 is an apocalyptic number.

It is an amenable number.

449784785 is a deficient number, since it is larger than the sum of its proper divisors (89956963).

449784785 is an equidigital number, since it uses as much as digits as its factorization.

449784785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89956962.

The product of its digits is 9031680, while the sum is 56.

The square root of 449784785 is about 21208.1301627465. The cubic root of 449784785 is about 766.1872489987.

The spelling of 449784785 in words is "four hundred forty-nine million, seven hundred eighty-four thousand, seven hundred eighty-five".