449681873 has 8 divisors (see below), whose sum is σ = 474268320. Its totient is φ = 425187360.

The previous prime is 449681863. The next prime is 449681887. The reversal of 449681873 is 378186944.

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 449681873 - 2¹⁰ = 449680849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449681833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12815 + ... + 32612.

It is an arithmetic number, because the mean of its divisors is an integer number (59283540).

Almost surely, 2^449681873 is an apocalyptic number.

It is an amenable number.

449681873 is a deficient number, since it is larger than the sum of its proper divisors (24586447).

449681873 is a wasteful number, since it uses less digits than its factorization.

449681873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45967.

The product of its digits is 1161216, while the sum is 50.

The square root of 449681873 is about 21205.7037845953. The cubic root of 449681873 is about 766.1288092892.

The spelling of 449681873 in words is "four hundred forty-nine million, six hundred eighty-one thousand, eight hundred seventy-three".