999413382 has 64 divisors (see below), whose sum is σ = 2213775360. Its totient is φ = 298272000.

The previous prime is 999413381. The next prime is 999413431. The reversal of 999413382 is 283314999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999413381) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2086219 + ... + 2086697.

It is an arithmetic number, because the mean of its divisors is an integer number (34590240).

Almost surely, 2^999413382 is an apocalyptic number.

It is a pronic number, being equal to 31613×31614.

It is a practical number, because each smaller number is the sum of distinct divisors of 999413382, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1106887680).

999413382 is an abundant number, since it is smaller than the sum of its proper divisors (1214361978).

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

999413382 is a wasteful number, since it uses less digits than its factorization.

999413382 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909.

The product of its digits is 419904, while the sum is 48.

The square root of 999413382 is about 31613.4999960460. The cubic root of 999413382 is about 999.8044224186.

The spelling of 999413382 in words is "nine hundred ninety-nine million, four hundred thirteen thousand, three hundred eighty-two".