4448409 has 16 divisors (see below), whose sum is σ = 6924288. Its totient is φ = 2487312.

The previous prime is 4448383. The next prime is 4448419. The reversal of 4448409 is 9048444.

It is not a de Polignac number, because 4448409 - 2¹⁵ = 4415641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4448409.

It is not an unprimeable number, because it can be changed into a prime (4448419) 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, 1267 + ... + 3240.

It is an arithmetic number, because the mean of its divisors is an integer number (432768).

Almost surely, 2^4448409 is an apocalyptic number.

It is an amenable number.

4448409 is a deficient number, since it is larger than the sum of its proper divisors (2475879).

4448409 is a wasteful number, since it uses less digits than its factorization.

4448409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564.

The product of its (nonzero) digits is 18432, while the sum is 33.

The square root of 4448409 is about 2109.1251740947. The cubic root of 4448409 is about 164.4630109336.

The spelling of 4448409 in words is "four million, four hundred forty-eight thousand, four hundred nine".