440243 has 4 divisors (see below), whose sum is σ = 459408. Its totient is φ = 421080.

The previous prime is 440239. The next prime is 440261. The reversal of 440243 is 342044.

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 440243 - 2² = 440239 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 440243.

It is not an unprimeable number, because it can be changed into a prime (440203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9548 + ... + 9593.

It is an arithmetic number, because the mean of its divisors is an integer number (114852).

2⁴⁴⁰²⁴³ is an apocalyptic number.

440243 is a deficient number, since it is larger than the sum of its proper divisors (19165).

440243 is a wasteful number, since it uses less digits than its factorization.

440243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19164.

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 440243 is about 663.5081009302. The cubic root of 440243 is about 76.0730484179.

Adding to 440243 its reverse (342044), we get a palindrome (782287).

The spelling of 440243 in words is "four hundred forty thousand, two hundred forty-three", and thus it is an iban number.