418308349 has 2 divisors, whose sum is σ = 418308350. Its totient is φ = 418308348.

The previous prime is 418308311. The next prime is 418308353. The reversal of 418308349 is 943803814.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411805849 + 6502500 = 20293^2 + 2550^2 .

It is a cyclic number.

It is not a de Polignac number, because 418308349 - 2⁷ = 418308221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (418308379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209154174 + 209154175.

It is an arithmetic number, because the mean of its divisors is an integer number (209154175).

Almost surely, 2^418308349 is an apocalyptic number.

It is an amenable number.

418308349 is a deficient number, since it is larger than the sum of its proper divisors (1).

418308349 is an equidigital number, since it uses as much as digits as its factorization.

418308349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 418308349 is about 20452.5878313723. The cubic root of 418308349 is about 747.8804446600.

The spelling of 418308349 in words is "four hundred eighteen million, three hundred eight thousand, three hundred forty-nine".