999524032 has 112 divisors (see below), whose sum is σ = 2292766560. Its totient is φ = 428433408.

The previous prime is 999523999. The next prime is 999524039. The reversal of 999524032 is 230425999.

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 999524032.

It is not an unprimeable number, because it can be changed into a prime (999524039) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837228 + ... + 838420.

It is an arithmetic number, because the mean of its divisors is an integer number (20471130).

Almost surely, 2^999524032 is an apocalyptic number.

999524032 is the 15808-th decagonal number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999524032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1146383280).

999524032 is an abundant number, since it is smaller than the sum of its proper divisors (1293242528).

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

999524032 is a wasteful number, since it uses less digits than its factorization.

999524032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290 (or 1280 counting only the distinct ones).

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 999524032 is about 31615.2499911040. The cubic root of 999524032 is about 999.8413188216.

The spelling of 999524032 in words is "nine hundred ninety-nine million, five hundred twenty-four thousand, thirty-two".