396642208 has 12 divisors (see below), whose sum is σ = 780889410. Its totient is φ = 198321088.

The previous prime is 396642163. The next prime is 396642221. The reversal of 396642208 is 802246693.

It can be written as a sum of positive squares in only one way, i.e., 310746384 + 85895824 = 17628^2 + 9268^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6197503 + ... + 6197566.

Almost surely, 2^396642208 is an apocalyptic number.

It is an amenable number.

396642208 is a deficient number, since it is larger than the sum of its proper divisors (384247202).

396642208 is a wasteful number, since it uses less digits than its factorization.

396642208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12395079 (or 12395071 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 40.

The square root of 396642208 is about 19915.8782884411. The cubic root of 396642208 is about 734.7388017849.

The spelling of 396642208 in words is "three hundred ninety-six million, six hundred forty-two thousand, two hundred eight".