399852 has 36 divisors (see below), whose sum is σ = 1048320. Its totient is φ = 128352.

The previous prime is 399851. The next prime is 399853. The reversal of 399852 is 258993.

399852 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (399851) and next prime (399853).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (399851) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 853 + ... + 1235.

It is an arithmetic number, because the mean of its divisors is an integer number (29120).

2³⁹⁹⁸⁵² 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 399852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (524160).

399852 is an abundant number, since it is smaller than the sum of its proper divisors (648468).

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

399852 is a wasteful number, since it uses less digits than its factorization.

399852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422 (or 417 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 399852 is about 632.3385169354. The cubic root of 399852 is about 73.6715415741.

The spelling of 399852 in words is "three hundred ninety-nine thousand, eight hundred fifty-two".