440105 has 16 divisors (see below), whose sum is σ = 570240. Its totient is φ = 325248.

The previous prime is 440101. The next prime is 440131. The reversal of 440105 is 501044.

It is a cyclic number.

It is not a de Polignac number, because 440105 - 2² = 440101 is a prime.

It is a super-2 number, since 2×440105² = 387384822050, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 440105.

It is not an unprimeable number, because it can be changed into a prime (440101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4901 + ... + 4989.

It is an arithmetic number, because the mean of its divisors is an integer number (35640).

2⁴⁴⁰¹⁰⁵ is an apocalyptic number.

It is an amenable number.

440105 is a deficient number, since it is larger than the sum of its proper divisors (130135).

440105 is a wasteful number, since it uses less digits than its factorization.

440105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160.

The product of its (nonzero) digits is 80, while the sum is 14.

The square root of 440105 is about 663.4041000778. The cubic root of 440105 is about 76.0650988857.

Adding to 440105 its reverse (501044), we get a palindrome (941149).

It can be divided in two parts, 440 and 105, that added together give a palindrome (545).

The spelling of 440105 in words is "four hundred forty thousand, one hundred five".