4449818 has 16 divisors (see below), whose sum is σ = 7312680. Its totient is φ = 2021376.

The previous prime is 4449817. The next prime is 4449821. The reversal of 4449818 is 8189444.

It can be written as a sum of positive squares in 4 ways, for example, as 2968729 + 1481089 = 1723^2 + 1217^2 .

It is not an unprimeable number, because it can be changed into a prime (4449811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1271 + ... + 3242.

Almost surely, 2^4449818 is an apocalyptic number.

4449818 is a deficient number, since it is larger than the sum of its proper divisors (2862862).

4449818 is a wasteful number, since it uses less digits than its factorization.

4449818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4561.

The product of its digits is 36864, while the sum is 38.

The square root of 4449818 is about 2109.4591723947. The cubic root of 4449818 is about 164.4803732400.

The spelling of 4449818 in words is "four million, four hundred forty-nine thousand, eight hundred eighteen".