812686342 has 16 divisors (see below), whose sum is σ = 1324849680. Its totient is φ = 371643552.

The previous prime is 812686333. The next prime is 812686363. The reversal of 812686342 is 243686218.

It is a junction number, because it is equal to n+sod(n) for n = 812686295 and 812686304.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 140548 + ... + 146215.

It is an arithmetic number, because the mean of its divisors is an integer number (82803105).

Almost surely, 2^812686342 is an apocalyptic number.

812686342 is a deficient number, since it is larger than the sum of its proper divisors (512163338).

812686342 is a wasteful number, since it uses less digits than its factorization.

812686342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286887.

The product of its digits is 110592, while the sum is 40.

The square root of 812686342 is about 28507.6540949970. The cubic root of 812686342 is about 933.1991195048.

The spelling of 812686342 in words is "eight hundred twelve million, six hundred eighty-six thousand, three hundred forty-two".