409041911 has 2 divisors, whose sum is σ = 409041912. Its totient is φ = 409041910.

The previous prime is 409041907. The next prime is 409041917. The reversal of 409041911 is 119140904.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 409041911 - 2² = 409041907 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (409041917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 204520955 + 204520956.

It is an arithmetic number, because the mean of its divisors is an integer number (204520956).

Almost surely, 2^409041911 is an apocalyptic number.

409041911 is a deficient number, since it is larger than the sum of its proper divisors (1).

409041911 is an equidigital number, since it uses as much as digits as its factorization.

409041911 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 29.

The square root of 409041911 is about 20224.7845724003. The cubic root of 409041911 is about 742.3167658438.

The spelling of 409041911 in words is "four hundred nine million, forty-one thousand, nine hundred eleven".