440382665 has 16 divisors (see below), whose sum is σ = 559120320. Its totient is φ = 332055360.

The previous prime is 440382659. The next prime is 440382689. The reversal of 440382665 is 566283044.

It is not a de Polignac number, because 440382665 - 2⁶ = 440382601 is a prime.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6950 + ... + 30480.

It is an arithmetic number, because the mean of its divisors is an integer number (34945020).

Almost surely, 2^440382665 is an apocalyptic number.

It is an amenable number.

440382665 is a deficient number, since it is larger than the sum of its proper divisors (118737655).

440382665 is a wasteful number, since it uses less digits than its factorization.

440382665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23752.

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 440382665 is about 20985.2964000988. The cubic root of 440382665 is about 760.8109217177.

The spelling of 440382665 in words is "four hundred forty million, three hundred eighty-two thousand, six hundred sixty-five".