440086668 has 48 divisors (see below), whose sum is σ = 1174758144. Its totient is φ = 125611200.

The previous prime is 440086657. The next prime is 440086681. The reversal of 440086668 is 866680044.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107271 + ... + 111297.

It is an arithmetic number, because the mean of its divisors is an integer number (24474128).

Almost surely, 2^440086668 is an apocalyptic number.

It is an amenable number.

440086668 is an abundant number, since it is smaller than the sum of its proper divisors (734671476).

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

440086668 is a wasteful number, since it uses less digits than its factorization.

440086668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5342 (or 5340 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 42.

The square root of 440086668 is about 20978.2427290753. The cubic root of 440086668 is about 760.6404274017.

The spelling of 440086668 in words is "four hundred forty million, eighty-six thousand, six hundred sixty-eight".