409128203 has 8 divisors (see below), whose sum is σ = 458384880. Its totient is φ = 361882080.

The previous prime is 409128193. The next prime is 409128211. The reversal of 409128203 is 302821904.

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 409128203 - 2⁸ = 409127947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409128263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 502208 + ... + 503021.

It is an arithmetic number, because the mean of its divisors is an integer number (57298110).

Almost surely, 2^409128203 is an apocalyptic number.

409128203 is a deficient number, since it is larger than the sum of its proper divisors (49256677).

409128203 is a wasteful number, since it uses less digits than its factorization.

409128203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1005277.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 409128203 is about 20226.9177829940. The cubic root of 409128203 is about 742.3689622021.

The spelling of 409128203 in words is "four hundred nine million, one hundred twenty-eight thousand, two hundred three".