378918868 has 12 divisors (see below), whose sum is σ = 664732180. Its totient is φ = 188995392.

The previous prime is 378918863. The next prime is 378918877. The reversal of 378918868 is 868819873.

It can be written as a sum of positive squares in 2 ways, for example, as 247999504 + 130919364 = 15748^2 + 11442^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378918863) 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, 114171 + ... + 117442.

Almost surely, 2^378918868 is an apocalyptic number.

It is an amenable number.

378918868 is a deficient number, since it is larger than the sum of its proper divisors (285813312).

378918868 is a wasteful number, since it uses less digits than its factorization.

378918868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232026 (or 232024 counting only the distinct ones).

The product of its digits is 4644864, while the sum is 58.

The square root of 378918868 is about 19465.8384869494. The cubic root of 378918868 is about 723.6280788697.

The spelling of 378918868 in words is "three hundred seventy-eight million, nine hundred eighteen thousand, eight hundred sixty-eight".