396624 has 20 divisors (see below), whose sum is σ = 1024736. Its totient is φ = 132192.

The previous prime is 396623. The next prime is 396629. The reversal of 396624 is 426693.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 396591 and 396600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396623) 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 3 ways as a sum of consecutive naturals, for example, 4084 + ... + 4179.

2³⁹⁶⁶²⁴ is an apocalyptic number.

It is an amenable number.

396624 is an abundant number, since it is smaller than the sum of its proper divisors (628112).

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

396624 is a wasteful number, since it uses less digits than its factorization.

396624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8274 (or 8268 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 396624 is about 629.7809142869. The cubic root of 396624 is about 73.4727558799.

The spelling of 396624 in words is "three hundred ninety-six thousand, six hundred twenty-four".