999289952 has 48 divisors (see below), whose sum is σ = 2078622000. Its totient is φ = 471582720.

The previous prime is 999289913. The next prime is 999289979. The reversal of 999289952 is 259982999.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167924 + ... + 173772.

It is an arithmetic number, because the mean of its divisors is an integer number (43304625).

Almost surely, 2^999289952 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 999289952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1039311000).

999289952 is an abundant number, since it is smaller than the sum of its proper divisors (1079332048).

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

999289952 is a wasteful number, since it uses less digits than its factorization.

999289952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6159 (or 6151 counting only the distinct ones).

The product of its digits is 9447840, while the sum is 62.

The square root of 999289952 is about 31611.5477634361. The cubic root of 999289952 is about 999.7632612925.

The spelling of 999289952 in words is "nine hundred ninety-nine million, two hundred eighty-nine thousand, nine hundred fifty-two".