440268657618 has 16 divisors (see below), whose sum is σ = 880567799616. Its totient is φ = 146751138480.

The previous prime is 440268657617. The next prime is 440268657637. The reversal of 440268657618 is 816756862044.

It is not an unprimeable number, because it can be changed into a prime (440268657611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1080246 + ... + 1430897.

It is an arithmetic number, because the mean of its divisors is an integer number (55035487476).

Almost surely, 2^440268657618 is an apocalyptic number.

440268657618 is an abundant number, since it is smaller than the sum of its proper divisors (440299141998).

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

440268657618 is a wasteful number, since it uses less digits than its factorization.

440268657618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2540369.

The product of its (nonzero) digits is 15482880, while the sum is 57.

The spelling of 440268657618 in words is "four hundred forty billion, two hundred sixty-eight million, six hundred fifty-seven thousand, six hundred eighteen".