999318522 has 16 divisors (see below), whose sum is σ = 2021094720. Its totient is φ = 329363232.

The previous prime is 999318521. The next prime is 999318553. The reversal of 999318522 is 225813999.

It is not an unprimeable number, because it can be changed into a prime (999318521) by changing a digit.

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, 935158 + ... + 936225.

It is an arithmetic number, because the mean of its divisors is an integer number (126318420).

Almost surely, 2^999318522 is an apocalyptic number.

999318522 is an abundant number, since it is smaller than the sum of its proper divisors (1021776198).

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

999318522 is a wasteful number, since it uses less digits than its factorization.

999318522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1871477.

The product of its digits is 349920, while the sum is 48.

The square root of 999318522 is about 31611.9996520309. Note that the first 3 decimals coincide. The cubic root of 999318522 is about 999.7727890458.

The spelling of 999318522 in words is "nine hundred ninety-nine million, three hundred eighteen thousand, five hundred twenty-two".