999258112 has 48 divisors (see below), whose sum is σ = 2052184680. Its totient is φ = 486088704.

The previous prime is 999258101. The next prime is 999258119. The reversal of 999258112 is 211852999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999258119) 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, 69183 + ... + 82369.

Almost surely, 2^999258112 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 999258112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1026092340).

999258112 is an abundant number, since it is smaller than the sum of its proper divisors (1052926568).

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

999258112 is a wasteful number, since it uses less digits than its factorization.

999258112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13246 (or 13226 counting only the distinct ones).

The product of its digits is 116640, while the sum is 46.

The square root of 999258112 is about 31611.0441459943. The cubic root of 999258112 is about 999.7526428195.

The spelling of 999258112 in words is "nine hundred ninety-nine million, two hundred fifty-eight thousand, one hundred twelve".