394896227216 has 10 divisors (see below), whose sum is σ = 765111440262. Its totient is φ = 197448113600.

The previous prime is 394896227197. The next prime is 394896227261. The reversal of 394896227216 is 612722698493.

It can be written as a sum of positive squares in only one way, i.e., 385814899600 + 9081327616 = 621140^2 + 95296^2 .

It is a super-2 number, since 2×394896227216² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12340507085 + ... + 12340507116.

Almost surely, 2^394896227216 is an apocalyptic number.

It is an amenable number.

394896227216 is a deficient number, since it is larger than the sum of its proper divisors (370215213046).

394896227216 is a wasteful number, since it uses less digits than its factorization.

394896227216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24681014209 (or 24681014203 counting only the distinct ones).

The product of its digits is 15676416, while the sum is 59.

The spelling of 394896227216 in words is "three hundred ninety-four billion, eight hundred ninety-six million, two hundred twenty-seven thousand, two hundred sixteen".