999826632 has 256 divisors, whose sum is σ = 3328819200. Its totient is φ = 272056320.

The previous prime is 999826631. The next prime is 999826651. The reversal of 999826632 is 236628999.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (999826631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3890248 + ... + 3890504.

It is an arithmetic number, because the mean of its divisors is an integer number (13003200).

Almost surely, 2^999826632 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 999826632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1664409600).

999826632 is an abundant number, since it is smaller than the sum of its proper divisors (2328992568).

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

999826632 is a wasteful number, since it uses less digits than its factorization.

999826632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393 (or 383 counting only the distinct ones).

The product of its digits is 2519424, while the sum is 54.

The square root of 999826632 is about 31620.0352940979. The cubic root of 999826632 is about 999.9422073267.

The spelling of 999826632 in words is "nine hundred ninety-nine million, eight hundred twenty-six thousand, six hundred thirty-two".