40004011 has 2 divisors, whose sum is σ = 40004012. Its totient is φ = 40004010.

The previous prime is 40003991. The next prime is 40004017. The reversal of 40004011 is 11040004.

40004011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40004011 - 2⁷ = 40003883 is a prime.

It is not a weakly prime, because it can be changed into another prime (40004017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20002005 + 20002006.

It is an arithmetic number, because the mean of its divisors is an integer number (20002006).

Almost surely, 2^40004011 is an apocalyptic number.

40004011 is a deficient number, since it is larger than the sum of its proper divisors (1).

40004011 is an equidigital number, since it uses as much as digits as its factorization.

40004011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 40004011 is about 6324.8724097803. The cubic root of 40004011 is about 342.0066201425.

Adding to 40004011 its reverse (11040004), we get a palindrome (51044015).

The spelling of 40004011 in words is "forty million, four thousand, eleven".