378314819 has 4 divisors (see below), whose sum is σ = 378354600. Its totient is φ = 378275040.

The previous prime is 378314813. The next prime is 378314857. The reversal of 378314819 is 918413873.

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.

It is a cyclic number.

It is not a de Polignac number, because 378314819 - 2⁴ = 378314803 is a prime.

It is a super-2 number, since 2×378314819² = 286244204550005522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 378314819.

It is not an unprimeable number, because it can be changed into a prime (378314813) 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 3 ways as a sum of consecutive naturals, for example, 3707 + ... + 27755.

It is an arithmetic number, because the mean of its divisors is an integer number (94588650).

Almost surely, 2^378314819 is an apocalyptic number.

378314819 is a deficient number, since it is larger than the sum of its proper divisors (39781).

378314819 is a wasteful number, since it uses less digits than its factorization.

378314819 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39780.

The product of its digits is 145152, while the sum is 44.

The square root of 378314819 is about 19450.3166812266. The cubic root of 378314819 is about 723.2433533345.

The spelling of 378314819 in words is "three hundred seventy-eight million, three hundred fourteen thousand, eight hundred nineteen".