440860666 has 8 divisors (see below), whose sum is σ = 662005620. Its totient is φ = 220192128.

The previous prime is 440860663. The next prime is 440860681. The reversal of 440860666 is 666068044.

It can be written as a sum of positive squares in 2 ways, for example, as 296356225 + 144504441 = 17215^2 + 12021^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (440860663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116781 + ... + 120496.

Almost surely, 2^440860666 is an apocalyptic number.

440860666 is a deficient number, since it is larger than the sum of its proper divisors (221144954).

440860666 is a wasteful number, since it uses less digits than its factorization.

440860666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238208.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 440860666 is about 20996.6822617289. The cubic root of 440860666 is about 761.0860891358.

The spelling of 440860666 in words is "four hundred forty million, eight hundred sixty thousand, six hundred sixty-six".