399132 has 18 divisors (see below), whose sum is σ = 1009008. Its totient is φ = 133032.

The previous prime is 399131. The next prime is 399137. The reversal of 399132 is 231993.

399132 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 399096 and 399105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5508 + ... + 5579.

It is an arithmetic number, because the mean of its divisors is an integer number (56056).

2³⁹⁹¹³² is an apocalyptic number.

It is an amenable number.

399132 is an abundant number, since it is smaller than the sum of its proper divisors (609876).

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

399132 is a wasteful number, since it uses less digits than its factorization.

399132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11097 (or 11092 counting only the distinct ones).

The product of its digits is 1458, while the sum is 27.

The square root of 399132 is about 631.7689451057. The cubic root of 399132 is about 73.6272957201.

The spelling of 399132 in words is "three hundred ninety-nine thousand, one hundred thirty-two".