805044 has 24 divisors (see below), whose sum is σ = 1906240. Its totient is φ = 264384.

The previous prime is 805037. The next prime is 805061. The reversal of 805044 is 440508.

It is a self number, because there is not a number n which added to its sum of digits gives 805044.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 805044.

It is an unprimeable number.

805044 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 417 + ... + 1335.

2⁸⁰⁵⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

805044 is an abundant number, since it is smaller than the sum of its proper divisors (1101196).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

805044 is a wasteful number, since it uses less digits than its factorization.

805044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999 (or 997 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 805044 is about 897.2424421526. The cubic root of 805044 is about 93.0264695149.

It can be divided in two parts, 80504 and 4, that added together give a palindrome (80508).

The spelling of 805044 in words is "eight hundred five thousand, forty-four".