396962388 has 18 divisors (see below), whose sum is σ = 1003432794. Its totient is φ = 132320784.

The previous prime is 396962323. The next prime is 396962389. The reversal of 396962388 is 883269693.

396962388 is a `hidden beast` number, since 3 + 9 + 6 + 9 + 623 + 8 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 239259024 + 157703364 = 15468^2 + 12558^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396962389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5513331 + ... + 5513402.

Almost surely, 2^396962388 is an apocalyptic number.

It is an amenable number.

396962388 is an abundant number, since it is smaller than the sum of its proper divisors (606470406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

396962388 is a wasteful number, since it uses less digits than its factorization.

396962388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11026743 (or 11026738 counting only the distinct ones).

The product of its digits is 3359232, while the sum is 54.

The square root of 396962388 is about 19923.9149767309. The cubic root of 396962388 is about 734.9364487604.

The spelling of 396962388 in words is "three hundred ninety-six million, nine hundred sixty-two thousand, three hundred eighty-eight".