399152 has 40 divisors (see below), whose sum is σ = 885360. Its totient is φ = 172800.

The previous prime is 399151. The next prime is 399163. The reversal of 399152 is 251993.

Its product of digits (2430) is a multiple of the sum of its prime divisors (135).

It is not an unprimeable number, because it can be changed into a prime (399151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3902 + ... + 4002.

It is an arithmetic number, because the mean of its divisors is an integer number (22134).

2³⁹⁹¹⁵² 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 399152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (442680).

399152 is an abundant number, since it is smaller than the sum of its proper divisors (486208).

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

399152 is a wasteful number, since it uses less digits than its factorization.

399152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141 (or 135 counting only the distinct ones).

The product of its digits is 2430, while the sum is 29.

The square root of 399152 is about 631.7847734791. The cubic root of 399152 is about 73.6285254898.

The spelling of 399152 in words is "three hundred ninety-nine thousand, one hundred fifty-two".