378686396 has 12 divisors (see below), whose sum is σ = 722946840. Its totient is φ = 172130160.

The previous prime is 378686393. The next prime is 378686411. The reversal of 378686396 is 693686873.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378686393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4303211 + ... + 4303298.

It is an arithmetic number, because the mean of its divisors is an integer number (60245570).

Almost surely, 2^378686396 is an apocalyptic number.

It is an amenable number.

378686396 is a deficient number, since it is larger than the sum of its proper divisors (344260444).

378686396 is a wasteful number, since it uses less digits than its factorization.

378686396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8606524 (or 8606522 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 56.

The square root of 378686396 is about 19459.8662893659. The cubic root of 378686396 is about 723.4800632960.

The spelling of 378686396 in words is "three hundred seventy-eight million, six hundred eighty-six thousand, three hundred ninety-six".