4440345 has 32 divisors (see below), whose sum is σ = 8746752. Its totient is φ = 1873152.

The previous prime is 4440343. The next prime is 4440367. The reversal of 4440345 is 5430444.

It is not a de Polignac number, because 4440345 - 2¹ = 4440343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4440343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 262 + ... + 2991.

It is an arithmetic number, because the mean of its divisors is an integer number (273336).

Almost surely, 2^4440345 is an apocalyptic number.

It is an amenable number.

4440345 is a deficient number, since it is larger than the sum of its proper divisors (4306407).

4440345 is a wasteful number, since it uses less digits than its factorization.

4440345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3281.

The product of its (nonzero) digits is 3840, while the sum is 24.

The square root of 4440345 is about 2107.2126138575. The cubic root of 4440345 is about 164.3635722416.

Adding to 4440345 its reverse (5430444), we get a palindrome (9870789).

Subtracting 4440345 from its reverse (5430444), we obtain a palindrome (990099).

The spelling of 4440345 in words is "four million, four hundred forty thousand, three hundred forty-five".