378458099 has 2 divisors, whose sum is σ = 378458100. Its totient is φ = 378458098.

The previous prime is 378458071. The next prime is 378458117. The reversal of 378458099 is 990854873.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 378458099 - 2²⁰ = 377409523 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is a self number, because there is not a number n which added to its sum of digits gives 378458099.

It is not a weakly prime, because it can be changed into another prime (378458039) 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 as a sum of consecutive naturals, namely, 189229049 + 189229050.

It is an arithmetic number, because the mean of its divisors is an integer number (189229050).

Almost surely, 2^378458099 is an apocalyptic number.

378458099 is a deficient number, since it is larger than the sum of its proper divisors (1).

378458099 is an equidigital number, since it uses as much as digits as its factorization.

378458099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2177280, while the sum is 53.

The square root of 378458099 is about 19453.9995630719. Note that the first 3 decimals coincide. The cubic root of 378458099 is about 723.3346469900.

The spelling of 378458099 in words is "three hundred seventy-eight million, four hundred fifty-eight thousand, ninety-nine".