856424112 has 20 divisors (see below), whose sum is σ = 2212429080. Its totient is φ = 285474688.

The previous prime is 856424111. The next prime is 856424123. The reversal of 856424112 is 211424658.

It is a happy number.

It is a super-2 number, since 2×856424112² = 1466924519229977088, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (856424111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8921037 + ... + 8921132.

It is an arithmetic number, because the mean of its divisors is an integer number (110621454).

Almost surely, 2^856424112 is an apocalyptic number.

It is an amenable number.

856424112 is an abundant number, since it is smaller than the sum of its proper divisors (1356004968).

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

856424112 is a wasteful number, since it uses less digits than its factorization.

856424112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17842180 (or 17842174 counting only the distinct ones).

The product of its digits is 15360, while the sum is 33.

The square root of 856424112 is about 29264.7247039845. The cubic root of 856424112 is about 949.6486649122.

The spelling of 856424112 in words is "eight hundred fifty-six million, four hundred twenty-four thousand, one hundred twelve".