449038009 has 24 divisors (see below), whose sum is σ = 532666368. Its totient is φ = 377354880.

The previous prime is 449037997. The next prime is 449038033. The reversal of 449038009 is 900830944.

It is not a de Polignac number, because 449038009 - 2⁹ = 449037497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (449038099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1172232 + ... + 1172614.

It is an arithmetic number, because the mean of its divisors is an integer number (22194432).

Almost surely, 2^449038009 is an apocalyptic number.

449038009 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

It is an amenable number.

449038009 is a deficient number, since it is larger than the sum of its proper divisors (83628359).

449038009 is a wasteful number, since it uses less digits than its factorization.

449038009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 805 (or 798 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 449038009 is about 21190.5169592438. The cubic root of 449038009 is about 765.7629814987.

The spelling of 449038009 in words is "four hundred forty-nine million, thirty-eight thousand, nine".