440385255 has 128 divisors (see below), whose sum is σ = 884183040. Its totient is φ = 209392128.

The previous prime is 440385251. The next prime is 440385269. The reversal of 440385255 is 552583044.

It is not a de Polignac number, because 440385255 - 2² = 440385251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440385251) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4275534 + ... + 4275636.

It is an arithmetic number, because the mean of its divisors is an integer number (6907680).

Almost surely, 2^440385255 is an apocalyptic number.

440385255 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

440385255 is an abundant number, since it is smaller than the sum of its proper divisors (443797785).

440385255 is a wasteful number, since it uses less digits than its factorization.

440385255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 151 counting only the distinct ones).

The product of its (nonzero) digits is 96000, while the sum is 36.

The square root of 440385255 is about 20985.3581098822. The cubic root of 440385255 is about 760.8124132208.

The spelling of 440385255 in words is "four hundred forty million, three hundred eighty-five thousand, two hundred fifty-five".