408209041 has 2 divisors, whose sum is σ = 408209042. Its totient is φ = 408209040.

The previous prime is 408208993. The next prime is 408209057. The reversal of 408209041 is 140902804.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 407878416 + 330625 = 20196^2 + 575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-408209041 is a prime.

It is not a weakly prime, because it can be changed into another prime (408209441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204104520 + 204104521.

It is an arithmetic number, because the mean of its divisors is an integer number (204104521).

Almost surely, 2^408209041 is an apocalyptic number.

It is an amenable number.

408209041 is a deficient number, since it is larger than the sum of its proper divisors (1).

408209041 is an equidigital number, since it uses as much as digits as its factorization.

408209041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 408209041 is about 20204.1837499068. The cubic root of 408209041 is about 741.8126011588.

The spelling of 408209041 in words is "four hundred eight million, two hundred nine thousand, forty-one".