399932 has 12 divisors (see below), whose sum is σ = 753816. Its totient is φ = 184560.

The previous prime is 399913. The next prime is 399937. The reversal of 399932 is 239993.

It is a junction number, because it is equal to n+sod(n) for n = 399892 and 399901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3794 + ... + 3897.

It is an arithmetic number, because the mean of its divisors is an integer number (62818).

2³⁹⁹⁹³² is an apocalyptic number.

It is an amenable number.

399932 is a deficient number, since it is larger than the sum of its proper divisors (353884).

399932 is a wasteful number, since it uses less digits than its factorization.

399932 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7708 (or 7706 counting only the distinct ones).

The product of its digits is 13122, while the sum is 35.

The square root of 399932 is about 632.4017710285. The cubic root of 399932 is about 73.6764545005.

It can be divided in two parts, 399 and 932, that added together give a palindrome (1331).

The spelling of 399932 in words is "three hundred ninety-nine thousand, nine hundred thirty-two".