809044 has 12 divisors (see below), whose sum is σ = 1423744. Its totient is φ = 402264.

The previous prime is 809041. The next prime is 809051. The reversal of 809044 is 440908.

It is a hoax number, since the sum of its digits (25) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (809041) 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, 439 + ... + 1345.

2⁸⁰⁹⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

809044 is a deficient number, since it is larger than the sum of its proper divisors (614700).

809044 is a wasteful number, since it uses less digits than its factorization.

809044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1134 (or 1132 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 809044 is about 899.4687320858. The cubic root of 809044 is about 93.1802877257.

It can be divided in two parts, 80904 and 4, that added together give a palindrome (80908).

The spelling of 809044 in words is "eight hundred nine thousand, forty-four".