378856738 has 16 divisors (see below), whose sum is σ = 613630080. Its totient is φ = 174391056.

The previous prime is 378856733. The next prime is 378856739. The reversal of 378856738 is 837658873.

It is not an unprimeable number, because it can be changed into a prime (378856733) 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, 9370 + ... + 29077.

It is an arithmetic number, because the mean of its divisors is an integer number (38351880).

Almost surely, 2^378856738 is an apocalyptic number.

378856738 is a deficient number, since it is larger than the sum of its proper divisors (234773342).

378856738 is a wasteful number, since it uses less digits than its factorization.

378856738 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38841.

The product of its digits is 6773760, while the sum is 55.

The square root of 378856738 is about 19464.2425488381. The cubic root of 378856738 is about 723.5885264538.

The spelling of 378856738 in words is "three hundred seventy-eight million, eight hundred fifty-six thousand, seven hundred thirty-eight".