399162 has 16 divisors (see below), whose sum is σ = 810432. Its totient is φ = 131040.

The previous prime is 399151. The next prime is 399163. The reversal of 399162 is 261993.

It is not an unprimeable number, because it can be changed into a prime (399163) by changing a digit.

399162 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 7 ways as a sum of consecutive naturals, for example, 43 + ... + 894.

It is an arithmetic number, because the mean of its divisors is an integer number (50652).

2³⁹⁹¹⁶² is an apocalyptic number.

399162 is an abundant number, since it is smaller than the sum of its proper divisors (411270).

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

399162 is a wasteful number, since it uses less digits than its factorization.

399162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013.

The product of its digits is 2916, while the sum is 30.

The square root of 399162 is about 631.7926875170. The cubic root of 399162 is about 73.6291403592.

It can be divided in two parts, 399 and 162, that added together give a triangular number (561 = T₃₃).

The spelling of 399162 in words is "three hundred ninety-nine thousand, one hundred sixty-two".