4440023 has 8 divisors (see below), whose sum is σ = 5150592. Its totient is φ = 3748536.

The previous prime is 4440019. The next prime is 4440031. The reversal of 4440023 is 3200444.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4440023 - 2² = 4440019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4439983 and 4440010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4440323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4265 + ... + 5202.

It is an arithmetic number, because the mean of its divisors is an integer number (643824).

Almost surely, 2^4440023 is an apocalyptic number.

4440023 is a deficient number, since it is larger than the sum of its proper divisors (710569).

4440023 is an equidigital number, since it uses as much as digits as its factorization.

4440023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9541.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 4440023 is about 2107.1362082220. The cubic root of 4440023 is about 164.3595991007.

Adding to 4440023 its reverse (3200444), we get a palindrome (7640467).

The spelling of 4440023 in words is "four million, four hundred forty thousand, twenty-three".