419020909 has 8 divisors (see below), whose sum is σ = 421944120. Its totient is φ = 416107776.

The previous prime is 419020907. The next prime is 419020919. The reversal of 419020909 is 909020914.

It can be written as a sum of positive squares in 4 ways, for example, as 85045284 + 333975625 = 9222^2 + 18275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 419020909 - 2¹ = 419020907 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (419020907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93099 + ... + 97495.

It is an arithmetic number, because the mean of its divisors is an integer number (52743015).

Almost surely, 2^419020909 is an apocalyptic number.

It is an amenable number.

419020909 is a deficient number, since it is larger than the sum of its proper divisors (2923211).

419020909 is a wasteful number, since it uses less digits than its factorization.

419020909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5039.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 419020909 is about 20470.0002198339. Note that the first 3 decimals coincide. The cubic root of 419020909 is about 748.3048583611.

The spelling of 419020909 in words is "four hundred nineteen million, twenty thousand, nine hundred nine".