409189201 has 4 divisors (see below), whose sum is σ = 433259172. Its totient is φ = 385119232.

The previous prime is 409189189. The next prime is 409189211. The reversal of 409189201 is 102981904.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 196000000 + 213189201 = 14000^2 + 14601^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-409189201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409189211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12034960 + ... + 12034993.

It is an arithmetic number, because the mean of its divisors is an integer number (108314793).

Almost surely, 2^409189201 is an apocalyptic number.

It is an amenable number.

409189201 is a deficient number, since it is larger than the sum of its proper divisors (24069971).

409189201 is a wasteful number, since it uses less digits than its factorization.

409189201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24069970.

The product of its (nonzero) digits is 5184, while the sum is 34.

The square root of 409189201 is about 20228.4255689858. The cubic root of 409189201 is about 742.4058542825.

The spelling of 409189201 in words is "four hundred nine million, one hundred eighty-nine thousand, two hundred one".