4449091 has 4 divisors (see below), whose sum is σ = 4454272. Its totient is φ = 4443912.

The previous prime is 4449083. The next prime is 4449103. The reversal of 4449091 is 1909444.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4449091 - 2³ = 4449083 is a prime.

It is a Duffinian number.

4449091 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (4449391) 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 3 ways as a sum of consecutive naturals, for example, 960 + ... + 3133.

It is an arithmetic number, because the mean of its divisors is an integer number (1113568).

Almost surely, 2^4449091 is an apocalyptic number.

4449091 is a deficient number, since it is larger than the sum of its proper divisors (5181).

4449091 is a wasteful number, since it uses less digits than its factorization.

4449091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5180.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 4449091 is about 2109.2868463061. The cubic root of 4449091 is about 164.4714152899.

The spelling of 4449091 in words is "four million, four hundred forty-nine thousand, ninety-one".