378730686 has 32 divisors (see below), whose sum is σ = 812384640. Its totient is φ = 117340704.

The previous prime is 378730679. The next prime is 378730741. The reversal of 378730686 is 686037873.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 25300 + ... + 37383.

It is an arithmetic number, because the mean of its divisors is an integer number (25387020).

Almost surely, 2^378730686 is an apocalyptic number.

378730686 is an abundant number, since it is smaller than the sum of its proper divisors (433653954).

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

378730686 is a wasteful number, since it uses less digits than its factorization.

378730686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62760.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The square root of 378730686 is about 19461.0042392473. The cubic root of 378730686 is about 723.5082675332.

The spelling of 378730686 in words is "three hundred seventy-eight million, seven hundred thirty thousand, six hundred eighty-six".