4440663 has 20 divisors (see below), whose sum is σ = 6733408. Its totient is φ = 2916000.

The previous prime is 4440659. The next prime is 4440673. The reversal of 4440663 is 3660444.

It is a happy number.

It is not a de Polignac number, because 4440663 - 2² = 4440659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440613) 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 19 ways as a sum of consecutive naturals, for example, 5538 + ... + 6288.

Almost surely, 2^4440663 is an apocalyptic number.

4440663 is a deficient number, since it is larger than the sum of its proper divisors (2292745).

4440663 is an equidigital number, since it uses as much as digits as its factorization.

4440663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 836 (or 827 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 4440663 is about 2107.2880676357. The cubic root of 4440663 is about 164.3674958383.

The spelling of 4440663 in words is "four million, four hundred forty thousand, six hundred sixty-three".