440646965 has 8 divisors (see below), whose sum is σ = 576847008. Its totient is φ = 320470480.

The previous prime is 440646961. The next prime is 440646971. The reversal of 440646965 is 569646044.

It is a happy number.

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

It is not a de Polignac number, because 440646965 - 2² = 440646961 is a prime.

It is a super-2 number, since 2×440646965² = 388339495527422450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440646961) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4005827 + ... + 4005936.

It is an arithmetic number, because the mean of its divisors is an integer number (72105876).

Almost surely, 2^440646965 is an apocalyptic number.

It is an amenable number.

440646965 is a deficient number, since it is larger than the sum of its proper divisors (136200043).

440646965 is a wasteful number, since it uses less digits than its factorization.

440646965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8011779.

The product of its (nonzero) digits is 622080, while the sum is 44.

The square root of 440646965 is about 20991.5927218494. The cubic root of 440646965 is about 760.9630940054.

The spelling of 440646965 in words is "four hundred forty million, six hundred forty-six thousand, nine hundred sixty-five".