440489 has 4 divisors (see below), whose sum is σ = 503424. Its totient is φ = 377556.

The previous prime is 440471. The next prime is 440497. The reversal of 440489 is 984044.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 440489 - 2¹⁶ = 374953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31457 + ... + 31470.

It is an arithmetic number, because the mean of its divisors is an integer number (125856).

2⁴⁴⁰⁴⁸⁹ is an apocalyptic number.

It is an amenable number.

440489 is a deficient number, since it is larger than the sum of its proper divisors (62935).

440489 is an equidigital number, since it uses as much as digits as its factorization.

440489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62934.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 440489 is about 663.6934533352. The cubic root of 440489 is about 76.0872152041.

It can be divided in two parts, 440 and 489, that added together give a palindrome (929).

The spelling of 440489 in words is "four hundred forty thousand, four hundred eighty-nine".