378281368 has 32 divisors (see below), whose sum is σ = 741247200. Its totient is φ = 180640768.

The previous prime is 378281359. The next prime is 378281369. The reversal of 378281368 is 863182873.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378281369) 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, 169830 + ... + 172042.

It is an arithmetic number, because the mean of its divisors is an integer number (23163975).

Almost surely, 2^378281368 is an apocalyptic number.

It is an amenable number.

378281368 is a deficient number, since it is larger than the sum of its proper divisors (362965832).

378281368 is a wasteful number, since it uses less digits than its factorization.

378281368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3171 (or 3167 counting only the distinct ones).

The product of its digits is 387072, while the sum is 46.

The square root of 378281368 is about 19449.4567533389. The cubic root of 378281368 is about 723.2220360565. Note that the first 3 decimals are identical.

The spelling of 378281368 in words is "three hundred seventy-eight million, two hundred eighty-one thousand, three hundred sixty-eight".