440558109 has 20 divisors (see below), whose sum is σ = 663157440. Its totient is φ = 291456360.

The previous prime is 440558087. The next prime is 440558113. The reversal of 440558109 is 901855044.

It is not a de Polignac number, because 440558109 - 2⁷ = 440557981 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440558159) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 10149 + ... + 31370.

It is an arithmetic number, because the mean of its divisors is an integer number (33157872).

Almost surely, 2^440558109 is an apocalyptic number.

It is an amenable number.

440558109 is a deficient number, since it is larger than the sum of its proper divisors (222599331).

440558109 is a wasteful number, since it uses less digits than its factorization.

440558109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41662 (or 41653 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 440558109 is about 20989.4761487751. The cubic root of 440558109 is about 760.9119414294.

The spelling of 440558109 in words is "four hundred forty million, five hundred fifty-eight thousand, one hundred nine".