399252 has 48 divisors (see below), whose sum is σ = 1097600. Its totient is φ = 112896.

The previous prime is 399241. The next prime is 399263. The reversal of 399252 is 252993.

It is an interprime number because it is at equal distance from previous prime (399241) and next prime (399263).

It is a d-powerful number, because it can be written as 3⁸ + 9 + 2¹⁰ + 9 + 5⁸ + 2¹⁰ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 399252.

It is an unprimeable number.

399252 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4068 + ... + 4164.

2³⁹⁹²⁵² 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 399252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (548800).

399252 is an abundant number, since it is smaller than the sum of its proper divisors (698348).

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

399252 is a wasteful number, since it uses less digits than its factorization.

399252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 109 counting only the distinct ones).

The product of its digits is 4860, while the sum is 30.

The square root of 399252 is about 631.8639093982. The cubic root of 399252 is about 73.6346737221.

The spelling of 399252 in words is "three hundred ninety-nine thousand, two hundred fifty-two".