440704 has 32 divisors (see below), whose sum is σ = 960840. Its totient is φ = 199680.

The previous prime is 440683. The next prime is 440711. The reversal of 440704 is 407044.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

440704 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1252 + ... + 1564.

2⁴⁴⁰⁷⁰⁴ is an apocalyptic number.

440704 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 440704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (480420).

440704 is an abundant number, since it is smaller than the sum of its proper divisors (520136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

440704 is a wasteful number, since it uses less digits than its factorization.

440704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 338 (or 326 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 19.

The square root of 440704 is about 663.8554059432. The cubic root of 440704 is about 76.0995924261.

Adding to 440704 its reverse (407044), we get a palindrome (847748).

The spelling of 440704 in words is "four hundred forty thousand, seven hundred four", and thus it is an iban number.