378247938 has 16 divisors (see below), whose sum is σ = 769318560. Its totient is φ = 123945536.

The previous prime is 378247921. The next prime is 378247939. The reversal of 378247938 is 839742873.

It is not an unprimeable number, because it can be changed into a prime (378247939) by changing a digit.

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, 533895 + ... + 534602.

It is an arithmetic number, because the mean of its divisors is an integer number (48082410).

Almost surely, 2^378247938 is an apocalyptic number.

378247938 is an abundant number, since it is smaller than the sum of its proper divisors (391070622).

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

378247938 is a wasteful number, since it uses less digits than its factorization.

378247938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068561.

The product of its digits is 2032128, while the sum is 51.

The square root of 378247938 is about 19448.5973273139. The cubic root of 378247938 is about 723.2007309056.

The spelling of 378247938 in words is "three hundred seventy-eight million, two hundred forty-seven thousand, nine hundred thirty-eight".