409336349 has 2 divisors, whose sum is σ = 409336350. Its totient is φ = 409336348.

The previous prime is 409336327. The next prime is 409336373. The reversal of 409336349 is 943633904.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 315595225 + 93741124 = 17765^2 + 9682^2 .

It is a cyclic number.

It is not a de Polignac number, because 409336349 - 2²⁰ = 408287773 is a prime.

It is a super-2 number, since 2×409336349² = 335112493225299602, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409336309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204668174 + 204668175.

It is an arithmetic number, because the mean of its divisors is an integer number (204668175).

Almost surely, 2^409336349 is an apocalyptic number.

It is an amenable number.

409336349 is a deficient number, since it is larger than the sum of its proper divisors (1).

409336349 is an equidigital number, since it uses as much as digits as its factorization.

409336349 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209952, while the sum is 41.

The square root of 409336349 is about 20232.0624010505. The cubic root of 409336349 is about 742.4948354873.

The spelling of 409336349 in words is "four hundred nine million, three hundred thirty-six thousand, three hundred forty-nine".