378000001 has 4 divisors (see below), whose sum is σ = 378203904. Its totient is φ = 377796100.

The previous prime is 377999929. The next prime is 378000013. The reversal of 378000001 is 100000873.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 378000001 - 2¹⁹ = 377475713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378000061) 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 3 ways as a sum of consecutive naturals, for example, 99145 + ... + 102886.

It is an arithmetic number, because the mean of its divisors is an integer number (94550976).

Almost surely, 2^378000001 is an apocalyptic number.

It is an amenable number.

378000001 is a deficient number, since it is larger than the sum of its proper divisors (203903).

378000001 is a wasteful number, since it uses less digits than its factorization.

378000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203902.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 378000001 is about 19442.2221209408. Note that the first 3 decimals coincide. The cubic root of 378000001 is about 723.0426798902.

Adding to 378000001 its reverse (100000873), we get a palindrome (478000874).

The spelling of 378000001 in words is "three hundred seventy-eight million, one", and thus it is an aban number.