440234443 has 4 divisors (see below), whose sum is σ = 480255768. Its totient is φ = 400213120.

The previous prime is 440234411. The next prime is 440234449. The reversal of 440234443 is 344432044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440234443 - 2⁵ = 440234411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440234449) 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 3 ways as a sum of consecutive naturals, for example, 20010646 + ... + 20010667.

It is an arithmetic number, because the mean of its divisors is an integer number (120063942).

Almost surely, 2^440234443 is an apocalyptic number.

440234443 is a deficient number, since it is larger than the sum of its proper divisors (40021325).

440234443 is a wasteful number, since it uses less digits than its factorization.

440234443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40021324.

The product of its (nonzero) digits is 18432, while the sum is 28.

The square root of 440234443 is about 20981.7645349480. The cubic root of 440234443 is about 760.7255553764.

Adding to 440234443 its reverse (344432044), we get a palindrome (784666487).

The spelling of 440234443 in words is "four hundred forty million, two hundred thirty-four thousand, four hundred forty-three".