40206811 has 2 divisors, whose sum is σ = 40206812. Its totient is φ = 40206810.

The previous prime is 40206709. The next prime is 40206851. The reversal of 40206811 is 11860204.

40206811 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 a de Polignac number, because none of the positive numbers 2^k-40206811 is a prime.

It is not a weakly prime, because it can be changed into another prime (40206851) 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, 20103405 + 20103406.

It is an arithmetic number, because the mean of its divisors is an integer number (20103406).

Almost surely, 2^40206811 is an apocalyptic number.

40206811 is a deficient number, since it is larger than the sum of its proper divisors (1).

40206811 is an equidigital number, since it uses as much as digits as its factorization.

40206811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 40206811 is about 6340.8840866239. The cubic root of 40206811 is about 342.5835795103.

The spelling of 40206811 in words is "forty million, two hundred six thousand, eight hundred eleven".