449853187 has 4 divisors (see below), whose sum is σ = 514117936. Its totient is φ = 385588440.

The previous prime is 449853149. The next prime is 449853197. The reversal of 449853187 is 781358944.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 449853187 - 2¹⁹ = 449328899 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 449853187.

It is not an unprimeable number, because it can be changed into a prime (449853197) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 32132364 + ... + 32132377.

It is an arithmetic number, because the mean of its divisors is an integer number (128529484).

Almost surely, 2^449853187 is an apocalyptic number.

449853187 is a deficient number, since it is larger than the sum of its proper divisors (64264749).

449853187 is an equidigital number, since it uses as much as digits as its factorization.

449853187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64264748.

The product of its digits is 967680, while the sum is 49.

The square root of 449853187 is about 21209.7427377137. The cubic root of 449853187 is about 766.2260868945.

The spelling of 449853187 in words is "four hundred forty-nine million, eight hundred fifty-three thousand, one hundred eighty-seven".