440806 has 4 divisors (see below), whose sum is σ = 661212. Its totient is φ = 220402.

The previous prime is 440773. The next prime is 440807. The reversal of 440806 is 608044.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (440807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110200 + ... + 110203.

It is an arithmetic number, because the mean of its divisors is an integer number (165303).

2⁴⁴⁰⁸⁰⁶ is an apocalyptic number.

440806 is a deficient number, since it is larger than the sum of its proper divisors (220406).

440806 is a wasteful number, since it uses less digits than its factorization.

440806 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220405.

The product of its (nonzero) digits is 768, while the sum is 22.

The square root of 440806 is about 663.9322254568. The cubic root of 440806 is about 76.1054630026.

The spelling of 440806 in words is "four hundred forty thousand, eight hundred six".