418319849 has 2 divisors, whose sum is σ = 418319850. Its totient is φ = 418319848.

The previous prime is 418319821. The next prime is 418319861. The reversal of 418319849 is 948913814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 246709849 + 171610000 = 15707^2 + 13100^2 .

It is a cyclic number.

It is not a de Polignac number, because 418319849 - 2⁸ = 418319593 is a prime.

It is not a weakly prime, because it can be changed into another prime (418319819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209159924 + 209159925.

It is an arithmetic number, because the mean of its divisors is an integer number (209159925).

Almost surely, 2^418319849 is an apocalyptic number.

It is an amenable number.

418319849 is a deficient number, since it is larger than the sum of its proper divisors (1).

418319849 is an equidigital number, since it uses as much as digits as its factorization.

418319849 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 248832, while the sum is 47.

The square root of 418319849 is about 20452.8689674578. The cubic root of 418319849 is about 747.8872980942.

The spelling of 418319849 in words is "four hundred eighteen million, three hundred nineteen thousand, eight hundred forty-nine".