999320048 has 80 divisors (see below), whose sum is σ = 2121292800. Its totient is φ = 454245120.

The previous prime is 999320039. The next prime is 999320071. The reversal of 999320048 is 840023999.

999320048 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 999319990 and 999320008.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2318393 + ... + 2318823.

It is an arithmetic number, because the mean of its divisors is an integer number (26516160).

Almost surely, 2^999320048 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 999320048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1060646400).

999320048 is an abundant number, since it is smaller than the sum of its proper divisors (1121972752).

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

999320048 is a wasteful number, since it uses less digits than its factorization.

999320048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 750 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 44.

The square root of 999320048 is about 31612.0237884258. The cubic root of 999320048 is about 999.7732979434.

The spelling of 999320048 in words is "nine hundred ninety-nine million, three hundred twenty thousand, forty-eight".