378321938 has 16 divisors (see below), whose sum is σ = 579705984. Its totient is φ = 185125920.

The previous prime is 378321919. The next prime is 378321997. The reversal of 378321938 is 839123873.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9731 + ... + 29177.

It is an arithmetic number, because the mean of its divisors is an integer number (36231624).

Almost surely, 2^378321938 is an apocalyptic number.

378321938 is a deficient number, since it is larger than the sum of its proper divisors (201384046).

378321938 is a wasteful number, since it uses less digits than its factorization.

378321938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19657.

The product of its digits is 217728, while the sum is 44.

The square root of 378321938 is about 19450.4996850981. The cubic root of 378321938 is about 723.2478898888.

The spelling of 378321938 in words is "three hundred seventy-eight million, three hundred twenty-one thousand, nine hundred thirty-eight".