449408289 has 16 divisors (see below), whose sum is σ = 664403904. Its totient is φ = 267902400.

The previous prime is 449408263. The next prime is 449408291. The reversal of 449408289 is 982804944.

It is not a de Polignac number, because 449408289 - 2⁷ = 449408161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449408989) 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, 109614 + ... + 113639.

It is an arithmetic number, because the mean of its divisors is an integer number (41525244).

Almost surely, 2^449408289 is an apocalyptic number.

It is an amenable number.

449408289 is a deficient number, since it is larger than the sum of its proper divisors (214995615).

449408289 is a wasteful number, since it uses less digits than its factorization.

449408289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223328.

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 449408289 is about 21199.2520858638. The cubic root of 449408289 is about 765.9734082396.

The spelling of 449408289 in words is "four hundred forty-nine million, four hundred eight thousand, two hundred eighty-nine".