399332 has 6 divisors (see below), whose sum is σ = 698838. Its totient is φ = 199664.

The previous prime is 399283. The next prime is 399353. The reversal of 399332 is 233993.

It is a happy number.

399332 is nontrivially palindromic in base 14.

It can be written as a sum of positive squares in only one way, i.e., 306916 + 92416 = 554^2 + 304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 399295 and 399304.

It is an unprimeable number.

399332 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 as a sum of consecutive naturals, namely, 49913 + ... + 49920.

It is an arithmetic number, because the mean of its divisors is an integer number (116473).

2³⁹⁹³³² is an apocalyptic number.

It is an amenable number.

399332 is a deficient number, since it is larger than the sum of its proper divisors (299506).

399332 is a wasteful number, since it uses less digits than its factorization.

399332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99837 (or 99835 counting only the distinct ones).

The product of its digits is 4374, while the sum is 29.

The square root of 399332 is about 631.9272109982. The cubic root of 399332 is about 73.6395915689.

The spelling of 399332 in words is "three hundred ninety-nine thousand, three hundred thirty-two".