812444 has 12 divisors (see below), whose sum is σ = 1436568. Its totient is φ = 402000.

The previous prime is 812443. The next prime is 812467. The reversal of 812444 is 444218.

812444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (812443) 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, 602 + ... + 1409.

It is an arithmetic number, because the mean of its divisors is an integer number (119714).

2⁸¹²⁴⁴⁴ is an apocalyptic number.

It is an amenable number.

812444 is a deficient number, since it is larger than the sum of its proper divisors (624124).

812444 is a wasteful number, since it uses less digits than its factorization.

812444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2116 (or 2114 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

The square root of 812444 is about 901.3567551197. The cubic root of 812444 is about 93.3106350699.

The spelling of 812444 in words is "eight hundred twelve thousand, four hundred forty-four".