378164242 has 12 divisors (see below), whose sum is σ = 569172510. Its totient is φ = 188442128.

The previous prime is 378164233. The next prime is 378164243. The reversal of 378164242 is 242461873.

378164242 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 271227961 + 106936281 = 16469^2 + 10341^2 .

It is not an unprimeable number, because it can be changed into a prime (378164243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 292734 + ... + 294022.

Almost surely, 2^378164242 is an apocalyptic number.

378164242 is a deficient number, since it is larger than the sum of its proper divisors (191008268).

378164242 is an equidigital number, since it uses as much as digits as its factorization.

378164242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057 (or 1674 counting only the distinct ones).

The product of its digits is 64512, while the sum is 37.

The square root of 378164242 is about 19446.4454849723. The cubic root of 378164242 is about 723.1473854080.

The spelling of 378164242 in words is "three hundred seventy-eight million, one hundred sixty-four thousand, two hundred forty-two".