399096 has 48 divisors (see below), whose sum is σ = 1132560. Its totient is φ = 126720.

The previous prime is 399079. The next prime is 399097. The reversal of 399096 is 690993.

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

It is a self number, because there is not a number n which added to its sum of digits gives 399096.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399097) by changing a digit.

399096 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 11 ways as a sum of consecutive naturals, for example, 1536 + ... + 1776.

It is an arithmetic number, because the mean of its divisors is an integer number (23595).

2³⁹⁹⁰⁹⁶ is an apocalyptic number.

399096 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399096, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (566280).

399096 is an abundant number, since it is smaller than the sum of its proper divisors (733464).

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

399096 is a wasteful number, since it uses less digits than its factorization.

399096 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 269 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 36.

The square root of 399096 is about 631.7404530343. The cubic root of 399096 is about 73.6250820311.

It can be divided in two parts, 3 and 99096, that added together give a palindrome (99099).

The spelling of 399096 in words is "three hundred ninety-nine thousand, ninety-six".