440443 has 2 divisors, whose sum is σ = 440444. Its totient is φ = 440442.

The previous prime is 440441. The next prime is 440471. The reversal of 440443 is 344044.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 440443 - 2¹ = 440441 is a prime.

Together with 440441, it forms a pair of twin primes.

It is a d-powerful number, because it can be written as 4³ + 4³ + 4⁵ + 0 + 4⁹ + 3¹¹ .

It is a self number, because there is not a number n which added to its sum of digits gives 440443.

It is not a weakly prime, because it can be changed into another prime (440441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 220221 + 220222.

It is an arithmetic number, because the mean of its divisors is an integer number (220222).

2⁴⁴⁰⁴⁴³ is an apocalyptic number.

440443 is a deficient number, since it is larger than the sum of its proper divisors (1).

440443 is an equidigital number, since it uses as much as digits as its factorization.

440443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 19.

The square root of 440443 is about 663.6587978773. The cubic root of 440443 is about 76.0845665313.

Adding to 440443 its reverse (344044), we get a palindrome (784487).

The spelling of 440443 in words is "four hundred forty thousand, four hundred forty-three", and thus it is an iban number.