419740649 has 2 divisors, whose sum is σ = 419740650. Its totient is φ = 419740648.

The previous prime is 419740621. The next prime is 419740661. The reversal of 419740649 is 946047914.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 419430400 + 310249 = 20480^2 + 557^2 .

It is a cyclic number.

It is not a de Polignac number, because 419740649 - 2⁸ = 419740393 is a prime.

It is not a weakly prime, because it can be changed into another prime (419740619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209870324 + 209870325.

It is an arithmetic number, because the mean of its divisors is an integer number (209870325).

Almost surely, 2^419740649 is an apocalyptic number.

It is an amenable number.

419740649 is a deficient number, since it is larger than the sum of its proper divisors (1).

419740649 is an equidigital number, since it uses as much as digits as its factorization.

419740649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 419740649 is about 20487.5730383079. The cubic root of 419740649 is about 748.7330604313.

The spelling of 419740649 in words is "four hundred nineteen million, seven hundred forty thousand, six hundred forty-nine".