805224 has 32 divisors (see below), whose sum is σ = 2301120. Its totient is φ = 230016.

The previous prime is 805223. The next prime is 805241. The reversal of 805224 is 422508.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 805224.

It is not an unprimeable number, because it can be changed into a prime (805223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2229 + ... + 2564.

It is an arithmetic number, because the mean of its divisors is an integer number (71910).

2⁸⁰⁵²²⁴ is an apocalyptic number.

805224 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

805224 is an abundant number, since it is smaller than the sum of its proper divisors (1495896).

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

805224 is a wasteful number, since it uses less digits than its factorization.

805224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4809 (or 4805 counting only the distinct ones).

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

The square root of 805224 is about 897.3427438833. The cubic root of 805224 is about 93.0334022692.

The spelling of 805224 in words is "eight hundred five thousand, two hundred twenty-four".