399246 has 8 divisors (see below), whose sum is σ = 798504. Its totient is φ = 133080.

The previous prime is 399241. The next prime is 399263. The reversal of 399246 is 642993.

It is a sphenic number, since it is the product of 3 distinct primes.

399246 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399241) by changing a digit.

399246 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 3 ways as a sum of consecutive naturals, for example, 33265 + ... + 33276.

It is an arithmetic number, because the mean of its divisors is an integer number (99813).

2³⁹⁹²⁴⁶ is an apocalyptic number.

399246 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

399246 is a wasteful number, since it uses less digits than its factorization.

399246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66546.

The product of its digits is 11664, while the sum is 33.

The square root of 399246 is about 631.8591615226. The cubic root of 399246 is about 73.6343048572.

The spelling of 399246 in words is "three hundred ninety-nine thousand, two hundred forty-six".