396793976144 has 20 divisors (see below), whose sum is σ = 770084786196. Its totient is φ = 198062418432.

The previous prime is 396793976107. The next prime is 396793976149. The reversal of 396793976144 is 441679397693.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 78743094544 + 318050881600 = 280612^2 + 563960^2 .

It is a super-2 number, since 2×396793976144² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (396793976149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20900819 + ... + 20919794.

Almost surely, 2^396793976144 is an apocalyptic number.

It is an amenable number.

396793976144 is a deficient number, since it is larger than the sum of its proper divisors (373290810052).

396793976144 is a wasteful number, since it uses less digits than its factorization.

396793976144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41821214 (or 41821208 counting only the distinct ones).

The product of its digits is 185177664, while the sum is 68.

The spelling of 396793976144 in words is "three hundred ninety-six billion, seven hundred ninety-three million, nine hundred seventy-six thousand, one hundred forty-four".