396428 has 24 divisors (see below), whose sum is σ = 752640. Its totient is φ = 182160.

The previous prime is 396427. The next prime is 396437. The reversal of 396428 is 824693.

396428 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 396394 and 396403.

It is not an unprimeable number, because it can be changed into a prime (396427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2783 + ... + 2921.

It is an arithmetic number, because the mean of its divisors is an integer number (31360).

2³⁹⁶⁴²⁸ is an apocalyptic number.

It is an amenable number.

396428 is a deficient number, since it is larger than the sum of its proper divisors (356212).

396428 is a wasteful number, since it uses less digits than its factorization.

396428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 197 (or 195 counting only the distinct ones).

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

The square root of 396428 is about 629.6252853881. The cubic root of 396428 is about 73.4606511888.

The spelling of 396428 in words is "three hundred ninety-six thousand, four hundred twenty-eight".