396990910306 has 8 divisors (see below), whose sum is σ = 595722583404. Its totient is φ = 198416715840.

The previous prime is 396990910301. The next prime is 396990910321. The reversal of 396990910306 is 603019099693.

It can be written as a sum of positive squares in 2 ways, for example, as 231321559681 + 165669350625 = 480959^2 + 407025^2 .

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

It is not an unprimeable number, because it can be changed into a prime (396990910301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39363355 + ... + 39373438.

Almost surely, 2^396990910306 is an apocalyptic number.

396990910306 is a deficient number, since it is larger than the sum of its proper divisors (198731673098).

396990910306 is a wasteful number, since it uses less digits than its factorization.

396990910306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78739316.

The product of its (nonzero) digits is 2125764, while the sum is 55.

The spelling of 396990910306 in words is "three hundred ninety-six billion, nine hundred ninety million, nine hundred ten thousand, three hundred six".