810044 has 12 divisors (see below), whose sum is σ = 1424304. Its totient is φ = 403104.

The previous prime is 810023. The next prime is 810049. The reversal of 810044 is 440018.

It is a happy number.

810044 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810049) 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, 929 + ... + 1575.

It is an arithmetic number, because the mean of its divisors is an integer number (118692).

2⁸¹⁰⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

810044 is a deficient number, since it is larger than the sum of its proper divisors (614260).

810044 is a wasteful number, since it uses less digits than its factorization.

810044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 964 (or 962 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 810044 is about 900.0244441125. The cubic root of 810044 is about 93.2186630274.

The spelling of 810044 in words is "eight hundred ten thousand, forty-four".