40369811 has 2 divisors, whose sum is σ = 40369812. Its totient is φ = 40369810.

The previous prime is 40369799. The next prime is 40369829. The reversal of 40369811 is 11896304.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40369811 is a prime.

It is not a weakly prime, because it can be changed into another prime (40369111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20184905 + 20184906.

It is an arithmetic number, because the mean of its divisors is an integer number (20184906).

Almost surely, 2^40369811 is an apocalyptic number.

40369811 is a deficient number, since it is larger than the sum of its proper divisors (1).

40369811 is an equidigital number, since it uses as much as digits as its factorization.

40369811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 40369811 is about 6353.7241835006. The cubic root of 40369811 is about 343.0459044320.

The spelling of 40369811 in words is "forty million, three hundred sixty-nine thousand, eight hundred eleven".