449392209 has 16 divisors (see below), whose sum is σ = 688619520. Its totient is φ = 255358800.

The previous prime is 449392187. The next prime is 449392241. The reversal of 449392209 is 902293944.

It is not a de Polignac number, because 449392209 - 2¹³ = 449384017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449392289) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56017 + ... + 63534.

It is an arithmetic number, because the mean of its divisors is an integer number (43038720).

Almost surely, 2^449392209 is an apocalyptic number.

It is an amenable number.

449392209 is a deficient number, since it is larger than the sum of its proper divisors (239227311).

449392209 is a wasteful number, since it uses less digits than its factorization.

449392209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119740.

The product of its (nonzero) digits is 139968, while the sum is 42.

The square root of 449392209 is about 21198.8728238083. The cubic root of 449392209 is about 765.9642725237.

The spelling of 449392209 in words is "four hundred forty-nine million, three hundred ninety-two thousand, two hundred nine".