440808 has 16 divisors (see below), whose sum is σ = 1102080. Its totient is φ = 146928.

The previous prime is 440807. The next prime is 440809. The reversal of 440808 is 808044.

It is an interprime number because it is at equal distance from previous prime (440807) and next prime (440809).

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 18367 = 440808 / (4 + 4 + 0 + 8 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (440807) 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 3 ways as a sum of consecutive naturals, for example, 9160 + ... + 9207.

It is an arithmetic number, because the mean of its divisors is an integer number (68880).

2⁴⁴⁰⁸⁰⁸ is an apocalyptic number.

It is an amenable number.

440808 is an abundant number, since it is smaller than the sum of its proper divisors (661272).

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

440808 is a wasteful number, since it uses less digits than its factorization.

440808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18376 (or 18372 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

The square root of 440808 is about 663.9337316329. The cubic root of 440808 is about 76.1055781029.

Subtracting 440808 from its reverse (808044), we obtain a square (367236 = 606²).

The spelling of 440808 in words is "four hundred forty thousand, eight hundred eight".