800244 has 18 divisors (see below), whose sum is σ = 2022930. Its totient is φ = 266736.

The previous prime is 800243. The next prime is 800281. The reversal of 800244 is 442008.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 608400 + 191844 = 780^2 + 438^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

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 800244.

It is not an unprimeable number, because it can be changed into a prime (800243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11079 + ... + 11150.

It is an arithmetic number, because the mean of its divisors is an integer number (112385).

2⁸⁰⁰²⁴⁴ is an apocalyptic number.

It is an amenable number.

800244 is an abundant number, since it is smaller than the sum of its proper divisors (1222686).

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

800244 is a wasteful number, since it uses less digits than its factorization.

800244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22239 (or 22234 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 800244 is about 894.5635807476. The cubic root of 800244 is about 92.8412136102.

The spelling of 800244 in words is "eight hundred thousand, two hundred forty-four".