440851 has 4 divisors (see below), whose sum is σ = 455104. Its totient is φ = 426600.

The previous prime is 440849. The next prime is 440863. The reversal of 440851 is 158044.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 440851 - 2¹ = 440849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (440821) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7080 + ... + 7141.

It is an arithmetic number, because the mean of its divisors is an integer number (113776).

2⁴⁴⁰⁸⁵¹ is an apocalyptic number.

440851 is a deficient number, since it is larger than the sum of its proper divisors (14253).

440851 is a wasteful number, since it uses less digits than its factorization.

440851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14252.

The product of its (nonzero) digits is 640, while the sum is 22.

The square root of 440851 is about 663.9661135932. The cubic root of 440851 is about 76.1080526750.

Adding to 440851 its reverse (158044), we get a palindrome (598895).

The spelling of 440851 in words is "four hundred forty thousand, eight hundred fifty-one".