399468 has 12 divisors (see below), whose sum is σ = 932120. Its totient is φ = 133152.

The previous prime is 399439. The next prime is 399473. The reversal of 399468 is 864993.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

399468 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, 16633 + ... + 16656.

2³⁹⁹⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

399468 is an abundant number, since it is smaller than the sum of its proper divisors (532652).

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

399468 is a wasteful number, since it uses less digits than its factorization.

399468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33296 (or 33294 counting only the distinct ones).

The product of its digits is 46656, while the sum is 39.

The square root of 399468 is about 632.0348091680. The cubic root of 399468 is about 73.6479504013.

The spelling of 399468 in words is "three hundred ninety-nine thousand, four hundred sixty-eight".