812044 has 6 divisors (see below), whose sum is σ = 1421084. Its totient is φ = 406020.

The previous prime is 812033. The next prime is 812047. The reversal of 812044 is 440218.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (812047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101502 + ... + 101509.

2⁸¹²⁰⁴⁴ is an apocalyptic number.

It is an amenable number.

812044 is a deficient number, since it is larger than the sum of its proper divisors (609040).

812044 is a wasteful number, since it uses less digits than its factorization.

812044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203015 (or 203013 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

The square root of 812044 is about 901.1348400767. The cubic root of 812044 is about 93.2953189861.

The spelling of 812044 in words is "eight hundred twelve thousand, forty-four".