812849244 has 12 divisors (see below), whose sum is σ = 1896648264. Its totient is φ = 270949744.

The previous prime is 812849227. The next prime is 812849273. The reversal of 812849244 is 442948218.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 812849196 and 812849205.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33868707 + ... + 33868730.

It is an arithmetic number, because the mean of its divisors is an integer number (158054022).

Almost surely, 2^812849244 is an apocalyptic number.

It is an amenable number.

812849244 is an abundant number, since it is smaller than the sum of its proper divisors (1083799020).

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

812849244 is a wasteful number, since it uses less digits than its factorization.

812849244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67737444 (or 67737442 counting only the distinct ones).

The product of its digits is 147456, while the sum is 42.

The square root of 812849244 is about 28510.5111143241. The cubic root of 812849244 is about 933.2614682195.

The spelling of 812849244 in words is "eight hundred twelve million, eight hundred forty-nine thousand, two hundred forty-four".