440000005 has 32 divisors (see below), whose sum is σ = 582624000. Its totient is φ = 317509632.

The previous prime is 440000003. The next prime is 440000017. The reversal of 440000005 is 500000044.

It is a cyclic number.

It is not a de Polignac number, because 440000005 - 2¹ = 440000003 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 440000005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440000003) 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, 762277 + ... + 762853.

It is an arithmetic number, because the mean of its divisors is an integer number (18207000).

Almost surely, 2^440000005 is an apocalyptic number.

It is an amenable number.

440000005 is a deficient number, since it is larger than the sum of its proper divisors (142623995).

440000005 is a wasteful number, since it uses less digits than its factorization.

440000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 973.

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 440000005 is about 20976.1770825859. The cubic root of 440000005 is about 760.5904950333.

Adding to 440000005 its reverse (500000044), we get a palindrome (940000049).

The spelling of 440000005 in words is "four hundred forty million, five", and thus it is an aban number.