440549065 has 32 divisors (see below), whose sum is σ = 585818496. Its totient is φ = 315394560.

The previous prime is 440549041. The next prime is 440549069. The reversal of 440549065 is 560945044.

It is not a de Polignac number, because 440549065 - 2⁷ = 440548937 is a prime.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (440549069) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1407349 + ... + 1407661.

It is an arithmetic number, because the mean of its divisors is an integer number (18306828).

Almost surely, 2^440549065 is an apocalyptic number.

It is an amenable number.

440549065 is a deficient number, since it is larger than the sum of its proper divisors (145269431).

440549065 is a wasteful number, since it uses less digits than its factorization.

440549065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649.

The product of its (nonzero) digits is 86400, while the sum is 37.

The square root of 440549065 is about 20989.2607063708. The cubic root of 440549065 is about 760.9067345985.

The spelling of 440549065 in words is "four hundred forty million, five hundred forty-nine thousand, sixty-five".