409140219 has 16 divisors (see below), whose sum is σ = 550368000. Its totient is φ = 270347616.

The previous prime is 409140203. The next prime is 409140229. The reversal of 409140219 is 912041904.

It is not a de Polignac number, because 409140219 - 2⁴ = 409140203 is a prime.

It is a super-2 number, since 2×409140219² = 334791437606735922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (409140229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173752 + ... + 176090.

It is an arithmetic number, because the mean of its divisors is an integer number (34398000).

Almost surely, 2^409140219 is an apocalyptic number.

409140219 is a deficient number, since it is larger than the sum of its proper divisors (141227781).

409140219 is a wasteful number, since it uses less digits than its factorization.

409140219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2834.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 409140219 is about 20227.2148107445. The cubic root of 409140219 is about 742.3762298654.

The spelling of 409140219 in words is "four hundred nine million, one hundred forty thousand, two hundred nineteen".