440945 has 8 divisors (see below), whose sum is σ = 547560. Its totient is φ = 340480.

The previous prime is 440941. The next prime is 440953. The reversal of 440945 is 549044.

440945 = T₅₄ + T₅₅ + ... + T₁₄₀.

It can be written as a sum of positive squares in 4 ways, for example, as 163216 + 277729 = 404^2 + 527^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 440945 - 2² = 440941 is a prime.

It is not an unprimeable number, because it can be changed into a prime (440941) 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 7 ways as a sum of consecutive naturals, for example, 1376 + ... + 1665.

It is an arithmetic number, because the mean of its divisors is an integer number (68445).

2⁴⁴⁰⁹⁴⁵ is an apocalyptic number.

It is an amenable number.

440945 is a deficient number, since it is larger than the sum of its proper divisors (106615).

440945 is a wasteful number, since it uses less digits than its factorization.

440945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 440945 is about 664.0368965652. The cubic root of 440945 is about 76.1134616442.

Adding to 440945 its reverse (549044), we get a palindrome (989989).

The spelling of 440945 in words is "four hundred forty thousand, nine hundred forty-five".