812282128 has 20 divisors (see below), whose sum is σ = 1798624960. Its totient is φ = 348120864.

The previous prime is 812282101. The next prime is 812282147. The reversal of 812282128 is 821282218.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 812282093 and 812282102.

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 3 ways as a sum of consecutive naturals, for example, 3626148 + ... + 3626371.

It is an arithmetic number, because the mean of its divisors is an integer number (89931248).

Almost surely, 2^812282128 is an apocalyptic number.

It is an amenable number.

812282128 is an abundant number, since it is smaller than the sum of its proper divisors (986342832).

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

812282128 is a wasteful number, since it uses less digits than its factorization.

812282128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7252534 (or 7252528 counting only the distinct ones).

The product of its digits is 8192, while the sum is 34.

The square root of 812282128 is about 28500.5636435492. The cubic root of 812282128 is about 933.0443756280.

The spelling of 812282128 in words is "eight hundred twelve million, two hundred eighty-two thousand, one hundred twenty-eight".