439968865 has 8 divisors (see below), whose sum is σ = 603385920. Its totient is φ = 301692912.

The previous prime is 439968821. The next prime is 439968899. The reversal of 439968865 is 568869934.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-439968865 is a prime.

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 7 ways as a sum of consecutive naturals, for example, 6285235 + ... + 6285304.

It is an arithmetic number, because the mean of its divisors is an integer number (75423240).

Almost surely, 2^439968865 is an apocalyptic number.

It is an amenable number.

439968865 is a deficient number, since it is larger than the sum of its proper divisors (163417055).

439968865 is a wasteful number, since it uses less digits than its factorization.

439968865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12570551.

The product of its digits is 11197440, while the sum is 58.

The square root of 439968865 is about 20975.4347988308. The cubic root of 439968865 is about 760.5725515890.

The spelling of 439968865 in words is "four hundred thirty-nine million, nine hundred sixty-eight thousand, eight hundred sixty-five".