396018 has 36 divisors (see below), whose sum is σ = 1000350. Its totient is φ = 112896.

The previous prime is 396001. The next prime is 396029. The reversal of 396018 is 810693.

It can be written as a sum of positive squares in only one way, i.e., 321489 + 74529 = 567^2 + 273^2 .

It is a Curzon number.

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 395982 and 396000.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 658 + ... + 1106.

2³⁹⁶⁰¹⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 396018, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (500175).

396018 is an abundant number, since it is smaller than the sum of its proper divisors (604332).

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

396018 is a wasteful number, since it uses less digits than its factorization.

396018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 471 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 396018 is about 629.2996106784. The cubic root of 396018 is about 73.4353172431.

The spelling of 396018 in words is "three hundred ninety-six thousand, eighteen".