440432 has 10 divisors (see below), whose sum is σ = 853368. Its totient is φ = 220208.

The previous prime is 440431. The next prime is 440441. The reversal of 440432 is 234044.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 440432.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13748 + ... + 13779.

2⁴⁴⁰⁴³² is an apocalyptic number.

It is an amenable number.

440432 is a deficient number, since it is larger than the sum of its proper divisors (412936).

440432 is a wasteful number, since it uses less digits than its factorization.

440432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27535 (or 27529 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 440432 is about 663.6505104345. The cubic root of 440432 is about 76.0839331256.

Adding to 440432 its reverse (234044), we get a palindrome (674476).

The spelling of 440432 in words is "four hundred forty thousand, four hundred thirty-two".