394616208225 has 48 divisors (see below), whose sum is σ = 670247244288. Its totient is φ = 204718256640.

The previous prime is 394616208209. The next prime is 394616208257. The reversal of 394616208225 is 522802616493.

It is a happy number.

It is not a de Polignac number, because 394616208225 - 2⁴ = 394616208209 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11435197 + ... + 11469653.

It is an arithmetic number, because the mean of its divisors is an integer number (13963484256).

Almost surely, 2^394616208225 is an apocalyptic number.

It is an amenable number.

394616208225 is a deficient number, since it is larger than the sum of its proper divisors (275631036063).

394616208225 is a wasteful number, since it uses less digits than its factorization.

394616208225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38634 (or 38629 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 394616208225 in words is "three hundred ninety-four billion, six hundred sixteen million, two hundred eight thousand, two hundred twenty-five".