999910112 has 48 divisors (see below), whose sum is σ = 2077765200. Its totient is φ = 472366080.

The previous prime is 999910103. The next prime is 999910117. The reversal of 999910112 is 211019999.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 999910112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999910117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246662 + ... + 250682.

It is an arithmetic number, because the mean of its divisors is an integer number (43286775).

Almost surely, 2^999910112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999910112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1038882600).

999910112 is an abundant number, since it is smaller than the sum of its proper divisors (1077855088).

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

999910112 is a wasteful number, since it uses less digits than its factorization.

999910112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459 (or 4451 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 41.

The square root of 999910112 is about 31621.3553156724. The cubic root of 999910112 is about 999.9700364355.

The spelling of 999910112 in words is "nine hundred ninety-nine million, nine hundred ten thousand, one hundred twelve".