999365328 has 240 divisors, whose sum is σ = 3126299904. Its totient is φ = 296110080.

The previous prime is 999365327. The next prime is 999365329. The reversal of 999365328 is 823563999.

It is an interprime number because it is at equal distance from previous prime (999365327) and next prime (999365329).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999365327) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 9702525 + ... + 9702627.

Almost surely, 2^999365328 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 999365328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1563149952).

999365328 is an abundant number, since it is smaller than the sum of its proper divisors (2126934576).

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

999365328 is a wasteful number, since it uses less digits than its factorization.

999365328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274 (or 265 counting only the distinct ones).

The product of its digits is 3149280, while the sum is 54.

The square root of 999365328 is about 31612.7399635021. The cubic root of 999365328 is about 999.7883978944.

The spelling of 999365328 in words is "nine hundred ninety-nine million, three hundred sixty-five thousand, three hundred twenty-eight".