399146 has 8 divisors (see below), whose sum is σ = 653184. Its totient is φ = 181420.

The previous prime is 399137. The next prime is 399149. The reversal of 399146 is 641993.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (399149) 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, 9050 + ... + 9093.

It is an arithmetic number, because the mean of its divisors is an integer number (81648).

2³⁹⁹¹⁴⁶ is an apocalyptic number.

399146 is a deficient number, since it is larger than the sum of its proper divisors (254038).

399146 is a wasteful number, since it uses less digits than its factorization.

399146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18156.

The product of its digits is 5832, while the sum is 32.

The square root of 399146 is about 631.7800250087. The cubic root of 399146 is about 73.6281565632.

It can be divided in two parts, 399 and 146, that added together give a palindrome (545).

The spelling of 399146 in words is "three hundred ninety-nine thousand, one hundred forty-six".