440113 has 4 divisors (see below), whose sum is σ = 466020. Its totient is φ = 414208.

The previous prime is 440101. The next prime is 440131. The reversal of 440113 is 311044.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 388129 + 51984 = 623^2 + 228^2 .

It is a cyclic number.

It is not a de Polignac number, because 440113 - 2⁹ = 439601 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440093 and 440102.

It is not an unprimeable number, because it can be changed into a prime (440183) 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 3 ways as a sum of consecutive naturals, for example, 12928 + ... + 12961.

It is an arithmetic number, because the mean of its divisors is an integer number (116505).

2⁴⁴⁰¹¹³ is an apocalyptic number.

It is an amenable number.

440113 is a deficient number, since it is larger than the sum of its proper divisors (25907).

440113 is a wasteful number, since it uses less digits than its factorization.

440113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25906.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 440113 is about 663.4101295579. The cubic root of 440113 is about 76.0655597735.

Adding to 440113 its reverse (311044), we get a palindrome (751157).

The spelling of 440113 in words is "four hundred forty thousand, one hundred thirteen".