440000255 has 4 divisors (see below), whose sum is σ = 528000312. Its totient is φ = 352000200.

The previous prime is 440000237. The next prime is 440000269. The reversal of 440000255 is 552000044.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 440000255 - 2⁸ = 439999999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44000021 + ... + 44000030.

It is an arithmetic number, because the mean of its divisors is an integer number (132000078).

Almost surely, 2^440000255 is an apocalyptic number.

440000255 is a deficient number, since it is larger than the sum of its proper divisors (88000057).

440000255 is an equidigital number, since it uses as much as digits as its factorization.

440000255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88000056.

The product of its (nonzero) digits is 800, while the sum is 20.

The square root of 440000255 is about 20976.1830417262. The cubic root of 440000255 is about 760.5906390845.

Adding to 440000255 its reverse (552000044), we get a palindrome (992000299).

The spelling of 440000255 in words is "four hundred forty million, two hundred fifty-five", and thus it is an aban number.