418290449 has 2 divisors, whose sum is σ = 418290450. Its totient is φ = 418290448.

The previous prime is 418290419. The next prime is 418290451. The reversal of 418290449 is 944092814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 236175424 + 182115025 = 15368^2 + 13495^2 .

It is a cyclic number.

It is not a de Polignac number, because 418290449 - 2⁸ = 418290193 is a prime.

Together with 418290451, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (418290419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209145224 + 209145225.

It is an arithmetic number, because the mean of its divisors is an integer number (209145225).

Almost surely, 2^418290449 is an apocalyptic number.

It is an amenable number.

418290449 is a deficient number, since it is larger than the sum of its proper divisors (1).

418290449 is an equidigital number, since it uses as much as digits as its factorization.

418290449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 418290449 is about 20452.1502292546. The cubic root of 418290449 is about 747.8697768907.

The spelling of 418290449 in words is "four hundred eighteen million, two hundred ninety thousand, four hundred forty-nine".