440013345 has 16 divisors (see below), whose sum is σ = 734631552. Its totient is φ = 224470400.

The previous prime is 440013323. The next prime is 440013373. The reversal of 440013345 is 543310044.

It is not a de Polignac number, because 440013345 - 2⁸ = 440013089 is a prime.

It is a super-2 number, since 2×440013345² = 387223487556178050, which contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 637356 + ... + 638045.

It is an arithmetic number, because the mean of its divisors is an integer number (45914472).

Almost surely, 2^440013345 is an apocalyptic number.

It is an amenable number.

440013345 is a deficient number, since it is larger than the sum of its proper divisors (294618207).

440013345 is a wasteful number, since it uses less digits than its factorization.

440013345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275432.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 440013345 is about 20976.4950599475. The cubic root of 440013345 is about 760.5981815292.

Adding to 440013345 its reverse (543310044), we get a palindrome (983323389).

The spelling of 440013345 in words is "four hundred forty million, thirteen thousand, three hundred forty-five".