440344 has 16 divisors (see below), whose sum is σ = 869400. Its totient is φ = 208512.

The previous prime is 440339. The next prime is 440347. The reversal of 440344 is 443044.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440347) by changing a digit.

440344 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 3 ways as a sum of consecutive naturals, for example, 1297 + ... + 1600.

2⁴⁴⁰³⁴⁴ is an apocalyptic number.

It is an amenable number.

440344 is a deficient number, since it is larger than the sum of its proper divisors (429056).

440344 is a wasteful number, since it uses less digits than its factorization.

440344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2922 (or 2918 counting only the distinct ones).

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

The square root of 440344 is about 663.5842071659. The cubic root of 440344 is about 76.0788655011.

Adding to 440344 its reverse (443044), we get a palindrome (883388).

It can be divided in two parts, 440 and 344, that added together give a square (784 = 28²).

The spelling of 440344 in words is "four hundred forty thousand, three hundred forty-four", and thus it is an iban number.