396018229 has 8 divisors (see below), whose sum is σ = 410360760. Its totient is φ = 381721536.

The previous prime is 396018169. The next prime is 396018263. The reversal of 396018229 is 922810693.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 19580625 + 376437604 = 4425^2 + 19402^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 396018229 - 2¹³ = 396010037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396018191 and 396018200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396018529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6639 + ... + 28915.

It is an arithmetic number, because the mean of its divisors is an integer number (51295095).

Almost surely, 2^396018229 is an apocalyptic number.

It is an amenable number.

396018229 is a deficient number, since it is larger than the sum of its proper divisors (14342531).

396018229 is a wasteful number, since it uses less digits than its factorization.

396018229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22919.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 396018229 is about 19900.2067577199. The cubic root of 396018229 is about 734.3533139792.

The spelling of 396018229 in words is "three hundred ninety-six million, eighteen thousand, two hundred twenty-nine".