419249009 has 2 divisors, whose sum is σ = 419249010. Its totient is φ = 419249008.

The previous prime is 419248993. The next prime is 419249057. The reversal of 419249009 is 900942914.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 409657600 + 9591409 = 20240^2 + 3097^2 .

It is a cyclic number.

It is not a de Polignac number, because 419249009 - 2⁴ = 419248993 is a prime.

It is not a weakly prime, because it can be changed into another prime (419249069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 209624504 + 209624505.

It is an arithmetic number, because the mean of its divisors is an integer number (209624505).

Almost surely, 2^419249009 is an apocalyptic number.

It is an amenable number.

419249009 is a deficient number, since it is larger than the sum of its proper divisors (1).

419249009 is an equidigital number, since it uses as much as digits as its factorization.

419249009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 419249009 is about 20475.5710298883. The cubic root of 419249009 is about 748.4406171993.

The spelling of 419249009 in words is "four hundred nineteen million, two hundred forty-nine thousand, nine".