4444491 has 4 divisors (see below), whose sum is σ = 5925992. Its totient is φ = 2962992.

The previous prime is 4444487. The next prime is 4444507. The reversal of 4444491 is 1944444.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 4444491 - 2² = 4444487 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4444471) 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, 740746 + ... + 740751.

It is an arithmetic number, because the mean of its divisors is an integer number (1481498).

Almost surely, 2^4444491 is an apocalyptic number.

4444491 is a deficient number, since it is larger than the sum of its proper divisors (1481501).

4444491 is a wasteful number, since it uses less digits than its factorization.

4444491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481500.

The product of its digits is 9216, while the sum is 30.

The square root of 4444491 is about 2108.1961483695. The cubic root of 4444491 is about 164.4147123661.

It can be divided in two parts, 44444 and 91, that multiplied together give a palindrome (4044404).

The spelling of 4444491 in words is "four million, four hundred forty-four thousand, four hundred ninety-one".