840108112 has 20 divisors (see below), whose sum is σ = 1639594836. Its totient is φ = 416986880.

The previous prime is 840108089. The next prime is 840108119. The reversal of 840108112 is 211801048.

It can be written as a sum of positive squares in 2 ways, for example, as 733109776 + 106998336 = 27076^2 + 10344^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840108119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189439 + ... + 193822.

Almost surely, 2^840108112 is an apocalyptic number.

It is an amenable number.

840108112 is a deficient number, since it is larger than the sum of its proper divisors (799486724).

840108112 is a wasteful number, since it uses less digits than its factorization.

840108112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383406 (or 383400 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 25.

The square root of 840108112 is about 28984.6185415644. The cubic root of 840108112 is about 943.5792736388.

The spelling of 840108112 in words is "eight hundred forty million, one hundred eight thousand, one hundred twelve".