378257323 has 4 divisors (see below), whose sum is σ = 378299160. Its totient is φ = 378215488.

The previous prime is 378257291. The next prime is 378257329. The reversal of 378257323 is 323752873.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 323752873 = 47 ⋅6888359.

It is a cyclic number.

It is not a de Polignac number, because 378257323 - 2⁵ = 378257291 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (378257329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1093 + ... + 27526.

It is an arithmetic number, because the mean of its divisors is an integer number (94574790).

Almost surely, 2^378257323 is an apocalyptic number.

378257323 is a deficient number, since it is larger than the sum of its proper divisors (41837).

378257323 is a wasteful number, since it uses less digits than its factorization.

378257323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41836.

The product of its digits is 211680, while the sum is 40.

The square root of 378257323 is about 19448.8386028575. The cubic root of 378257323 is about 723.2067121523.

The spelling of 378257323 in words is "three hundred seventy-eight million, two hundred fifty-seven thousand, three hundred twenty-three".