4449919 has 2 divisors, whose sum is σ = 4449920. Its totient is φ = 4449918.

The previous prime is 4449901. The next prime is 4449923. The reversal of 4449919 is 9199444.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4449919 - 2⁹ = 4449407 is a prime.

It is a super-2 number, since 2×4449919² = 39603558213122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4449119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2224959 + 2224960.

It is an arithmetic number, because the mean of its divisors is an integer number (2224960).

Almost surely, 2^4449919 is an apocalyptic number.

4449919 is a deficient number, since it is larger than the sum of its proper divisors (1).

4449919 is an equidigital number, since it uses as much as digits as its factorization.

4449919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 4449919 is about 2109.4831120443. The cubic root of 4449919 is about 164.4816176649.

The spelling of 4449919 in words is "four million, four hundred forty-nine thousand, nine hundred nineteen".