396365939776 has 21 divisors (see below), whose sum is σ = 786548656389. Its totient is φ = 198180451584.

The previous prime is 396365939771. The next prime is 396365939791. The reversal of 396365939776 is 677939563693.

The square root of 396365939776 is 629576.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 13670286400 + 382695653376 = 116920^2 + 618624^2 .

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 396365939699 and 396365939708.

It is not an unprimeable number, because it can be changed into a prime (396365939771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 4997260 + ... + 5075956.

Almost surely, 2^396365939776 is an apocalyptic number.

396365939776 is the 629576-th square number.

It is an amenable number.

396365939776 is a deficient number, since it is larger than the sum of its proper divisors (390182716613).

396365939776 is an frugal number, since it uses more digits than its factorization.

396365939776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157406 (or 78699 counting only the distinct ones).

The product of its digits is 1041624360, while the sum is 73.

The spelling of 396365939776 in words is "three hundred ninety-six billion, three hundred sixty-five million, nine hundred thirty-nine thousand, seven hundred seventy-six".