399882 has 16 divisors (see below), whose sum is σ = 914112. Its totient is φ = 114240.

The previous prime is 399871. The next prime is 399887. The reversal of 399882 is 288993.

It is a super-2 number, since 2×399882² = 319811227848, which contains 22 as substring.

It is a zygodrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 399882.

It is not an unprimeable number, because it can be changed into a prime (399887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4719 + ... + 4802.

It is an arithmetic number, because the mean of its divisors is an integer number (57132).

2³⁹⁹⁸⁸² is an apocalyptic number.

399882 is an abundant number, since it is smaller than the sum of its proper divisors (514230).

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

399882 is a wasteful number, since it uses less digits than its factorization.

399882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9533.

The product of its digits is 31104, while the sum is 39.

The square root of 399882 is about 632.3622379618. The cubic root of 399882 is about 73.6733839983.

Subtracting from 399882 its reverse (288993), we obtain a square (110889 = 333²).

The spelling of 399882 in words is "three hundred ninety-nine thousand, eight hundred eighty-two".