4449478 has 16 divisors (see below), whose sum is σ = 7709904. Its totient is φ = 1903360.

The previous prime is 4449469. The next prime is 4449479. The reversal of 4449478 is 8749444.

It is a self number, because there is not a number n which added to its sum of digits gives 4449478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4449479) 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, 5575 + ... + 6322.

It is an arithmetic number, because the mean of its divisors is an integer number (481869).

Almost surely, 2^4449478 is an apocalyptic number.

4449478 is a deficient number, since it is larger than the sum of its proper divisors (3260426).

4449478 is a wasteful number, since it uses less digits than its factorization.

4449478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11927.

The product of its digits is 129024, while the sum is 40.

The square root of 4449478 is about 2109.3785814784. The cubic root of 4449478 is about 164.4761839488.

The spelling of 4449478 in words is "four million, four hundred forty-nine thousand, four hundred seventy-eight".