449418609 has 24 divisors (see below), whose sum is σ = 684209760. Its totient is φ = 283476672.

The previous prime is 449418601. The next prime is 449418617. The reversal of 449418609 is 906814944.

It is an interprime number because it is at equal distance from previous prime (449418601) and next prime (449418617).

It is not a de Polignac number, because 449418609 - 2³ = 449418601 is a prime.

It is a super-2 number, since 2×449418609² = 403954172230989762, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (449418601) 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, 202902 + ... + 205104.

It is an arithmetic number, because the mean of its divisors is an integer number (28508740).

Almost surely, 2^449418609 is an apocalyptic number.

It is an amenable number.

449418609 is a deficient number, since it is larger than the sum of its proper divisors (234791151).

449418609 is a wasteful number, since it uses less digits than its factorization.

449418609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421 (or 3418 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 449418609 is about 21199.4954892799. The cubic root of 449418609 is about 765.9792713454.

The spelling of 449418609 in words is "four hundred forty-nine million, four hundred eighteen thousand, six hundred nine".