999232 has 28 divisors (see below), whose sum is σ = 2137156. Its totient is φ = 460800.

The previous prime is 999221. The next prime is 999233. The reversal of 999232 is 232999.

It can be written as a sum of positive squares in 2 ways, for example, as 46656 + 952576 = 216^2 + 976^2 .

It is a zygodrome in base 7.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999233) 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 3 ways as a sum of consecutive naturals, for example, 232 + ... + 1432.

It is an arithmetic number, because the mean of its divisors is an integer number (76327).

2⁹⁹⁹²³² 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 999232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1068578).

999232 is an abundant number, since it is smaller than the sum of its proper divisors (1137924).

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

999232 is a wasteful number, since it uses less digits than its factorization.

999232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1226 (or 1216 counting only the distinct ones).

The product of its digits is 8748, while the sum is 34.

The square root of 999232 is about 999.6159262437. The cubic root of 999232 is about 99.9743934436.

The spelling of 999232 in words is "nine hundred ninety-nine thousand, two hundred thirty-two".