409820201 has 8 divisors (see below), whose sum is σ = 468561984. Its totient is φ = 351127440.

The previous prime is 409820189. The next prime is 409820209. The reversal of 409820201 is 102028904.

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 409820201 - 2⁶ = 409820137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (409820209) 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, 7871 + ... + 29691.

It is an arithmetic number, because the mean of its divisors is an integer number (58570248).

Almost surely, 2^409820201 is an apocalyptic number.

It is an amenable number.

409820201 is a deficient number, since it is larger than the sum of its proper divisors (58741783).

409820201 is a wasteful number, since it uses less digits than its factorization.

409820201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24511.

The product of its (nonzero) digits is 1152, while the sum is 26.

The square root of 409820201 is about 20244.0164246130. The cubic root of 409820201 is about 742.7872731958.

The spelling of 409820201 in words is "four hundred nine million, eight hundred twenty thousand, two hundred one".