440191 has 8 divisors (see below), whose sum is σ = 467280. Its totient is φ = 413952.

The previous prime is 440183. The next prime is 440203. The reversal of 440191 is 191044.

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

It is a cyclic number.

It is not a de Polignac number, because 440191 - 2³ = 440183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440101) 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, 1071 + ... + 1423.

It is an arithmetic number, because the mean of its divisors is an integer number (58410).

2⁴⁴⁰¹⁹¹ is an apocalyptic number.

440191 is a deficient number, since it is larger than the sum of its proper divisors (27089).

440191 is a wasteful number, since it uses less digits than its factorization.

440191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 440191 is about 663.4689141173. The cubic root of 440191 is about 76.0700531371.

The spelling of 440191 in words is "four hundred forty thousand, one hundred ninety-one".