378030493 has 2 divisors, whose sum is σ = 378030494. Its totient is φ = 378030492.

The previous prime is 378030469. The next prime is 378030511. The reversal of 378030493 is 394030873.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201725209 + 176305284 = 14203^2 + 13278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-378030493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (378030293) 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 as a sum of consecutive naturals, namely, 189015246 + 189015247.

It is an arithmetic number, because the mean of its divisors is an integer number (189015247).

Almost surely, 2^378030493 is an apocalyptic number.

It is an amenable number.

378030493 is a deficient number, since it is larger than the sum of its proper divisors (1).

378030493 is an equidigital number, since it uses as much as digits as its factorization.

378030493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

The square root of 378030493 is about 19443.0062747508. The cubic root of 378030493 is about 723.0621211817.

The spelling of 378030493 in words is "three hundred seventy-eight million, thirty thousand, four hundred ninety-three".