440244 has 36 divisors (see below), whose sum is σ = 1272544. Its totient is φ = 125712.

The previous prime is 440239. The next prime is 440261. The reversal of 440244 is 442044.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 14.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 440244.

It is an unprimeable number.

440244 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 622 + ... + 1125.

2⁴⁴⁰²⁴⁴ is an apocalyptic number.

It is an amenable number.

440244 is an abundant number, since it is smaller than the sum of its proper divisors (832300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440244 is a wasteful number, since it uses less digits than its factorization.

440244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1764 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 440244 is about 663.5088545001. The cubic root of 440244 is about 76.0731060172.

Adding to 440244 its reverse (442044), we get a palindrome (882288).

The spelling of 440244 in words is "four hundred forty thousand, two hundred forty-four", and thus it is an iban number.