396842 has 8 divisors (see below), whose sum is σ = 621216. Its totient is φ = 189772.

The previous prime is 396833. The next prime is 396871. The reversal of 396842 is 248693.

396842 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 396799 and 396808.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4268 + ... + 4359.

It is an arithmetic number, because the mean of its divisors is an integer number (77652).

2³⁹⁶⁸⁴² is an apocalyptic number.

396842 is a deficient number, since it is larger than the sum of its proper divisors (224374).

396842 is a wasteful number, since it uses less digits than its factorization.

396842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8652.

The product of its digits is 10368, while the sum is 32.

The square root of 396842 is about 629.9539665722. The cubic root of 396842 is about 73.4862145772.

The spelling of 396842 in words is "three hundred ninety-six thousand, eight hundred forty-two".