409196081 has 4 divisors (see below), whose sum is σ = 467652672. Its totient is φ = 350739492.

The previous prime is 409196077. The next prime is 409196083. The reversal of 409196081 is 180691904.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 409196081 - 2² = 409196077 is a prime.

It is a super-2 number, since 2×409196081² = 334882865411517122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (409196083) 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, 29228285 + ... + 29228298.

It is an arithmetic number, because the mean of its divisors is an integer number (116913168).

Almost surely, 2^409196081 is an apocalyptic number.

It is an amenable number.

409196081 is a deficient number, since it is larger than the sum of its proper divisors (58456591).

409196081 is an equidigital number, since it uses as much as digits as its factorization.

409196081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58456590.

The product of its (nonzero) digits is 15552, while the sum is 38.

The square root of 409196081 is about 20228.5956259944. The cubic root of 409196081 is about 742.4100151317.

The spelling of 409196081 in words is "four hundred nine million, one hundred ninety-six thousand, eighty-one".