449045913 has 4 divisors (see below), whose sum is σ = 598727888. Its totient is φ = 299363940.

The previous prime is 449045911. The next prime is 449045917. The reversal of 449045913 is 319540944.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 449045913 - 2¹ = 449045911 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449045911) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74840983 + ... + 74840988.

It is an arithmetic number, because the mean of its divisors is an integer number (149681972).

Almost surely, 2^449045913 is an apocalyptic number.

It is an amenable number.

449045913 is a deficient number, since it is larger than the sum of its proper divisors (149681975).

449045913 is a wasteful number, since it uses less digits than its factorization.

449045913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149681974.

The product of its (nonzero) digits is 77760, while the sum is 39.

The square root of 449045913 is about 21190.7034569407. The cubic root of 449045913 is about 765.7674744778.

It can be divided in two parts, 4490 and 45913, that added together give a triangular number (50403 = T₃₁₇).

The spelling of 449045913 in words is "four hundred forty-nine million, forty-five thousand, nine hundred thirteen".