990200112 has 100 divisors (see below), whose sum is σ = 2815798200. Its totient is φ = 299847680.

The previous prime is 990200093. The next prime is 990200119. The reversal of 990200112 is 211002099.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (990200119) by changing a digit.

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 19 ways as a sum of consecutive naturals, for example, 702064 + ... + 703472.

It is an arithmetic number, because the mean of its divisors is an integer number (28157982).

Almost surely, 2^990200112 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 990200112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1407899100).

990200112 is an abundant number, since it is smaller than the sum of its proper divisors (1825598088).

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

990200112 is a wasteful number, since it uses less digits than its factorization.

990200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464 (or 1425 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 24.

The square root of 990200112 is about 31467.4452728530. The cubic root of 990200112 is about 996.7226413209.

It can be divided in two parts, 990 and 200112, that added together give a palindrome (201102).

The spelling of 990200112 in words is "nine hundred ninety million, two hundred thousand, one hundred twelve".