440135 has 16 divisors (see below), whose sum is σ = 574560. Its totient is φ = 322560.

The previous prime is 440131. The next prime is 440159. The reversal of 440135 is 531044.

It is not a de Polignac number, because 440135 - 2² = 440131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3839 + ... + 3951.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2⁴⁴⁰¹³⁵ is an apocalyptic number.

440135 is a deficient number, since it is larger than the sum of its proper divisors (134425).

440135 is a wasteful number, since it uses less digits than its factorization.

440135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178.

The product of its (nonzero) digits is 240, while the sum is 17.

The square root of 440135 is about 663.4267103456. The cubic root of 440135 is about 76.0668271862.

Adding to 440135 its reverse (531044), we get a palindrome (971179).

Subtracting 440135 from its reverse (531044), we obtain a palindrome (90909).

It can be divided in two parts, 440 and 135, that added together give a palindrome (575).

The spelling of 440135 in words is "four hundred forty thousand, one hundred thirty-five".