440003243 has 16 divisors (see below), whose sum is σ = 461387520. Its totient is φ = 419126400.

The previous prime is 440003227. The next prime is 440003261. The reversal of 440003243 is 342300044.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 440003243 - 2⁴ = 440003227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440003203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 665333 + ... + 665993.

It is an arithmetic number, because the mean of its divisors is an integer number (28836720).

Almost surely, 2^440003243 is an apocalyptic number.

440003243 is a deficient number, since it is larger than the sum of its proper divisors (21384277).

440003243 is a wasteful number, since it uses less digits than its factorization.

440003243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 998.

The product of its (nonzero) digits is 1152, while the sum is 20.

The square root of 440003243 is about 20976.2542652400. The cubic root of 440003243 is about 760.5923607802.

Adding to 440003243 its reverse (342300044), we get a palindrome (782303287).

The spelling of 440003243 in words is "four hundred forty million, three thousand, two hundred forty-three".