440725 has 18 divisors (see below), whose sum is σ = 590054. Its totient is φ = 326400.

The previous prime is 440723. The next prime is 440731. The reversal of 440725 is 527044.

It can be written as a sum of positive squares in 9 ways, for example, as 116964 + 323761 = 342^2 + 569^2 .

It is not a de Polignac number, because 440725 - 2¹ = 440723 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 440696 and 440705.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440723) 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 17 ways as a sum of consecutive naturals, for example, 7195 + ... + 7255.

2⁴⁴⁰⁷²⁵ is an apocalyptic number.

It is an amenable number.

440725 is a deficient number, since it is larger than the sum of its proper divisors (149329).

440725 is a wasteful number, since it uses less digits than its factorization.

440725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105 (or 83 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 440725 is about 663.8712224521. The cubic root of 440725 is about 76.1008011483.

Adding to 440725 its reverse (527044), we get a palindrome (967769).

The spelling of 440725 in words is "four hundred forty thousand, seven hundred twenty-five".