396813970305 has 40 divisors (see below), whose sum is σ = 734271800064. Its totient is φ = 204807204000.

The previous prime is 396813970253. The next prime is 396813970307. The reversal of 396813970305 is 503079318693.

396813970305 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 396813970305 - 2⁷ = 396813970177 is a prime.

It is a super-2 number, since 2×396813970305² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (396813970307) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 15790471 + ... + 15815580.

Almost surely, 2^396813970305 is an apocalyptic number.

It is an amenable number.

396813970305 is a deficient number, since it is larger than the sum of its proper divisors (337457829759).

396813970305 is a wasteful number, since it uses less digits than its factorization.

396813970305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31606099 (or 31606090 counting only the distinct ones).

The product of its (nonzero) digits is 3674160, while the sum is 54.

The spelling of 396813970305 in words is "three hundred ninety-six billion, eight hundred thirteen million, nine hundred seventy thousand, three hundred five".