22740811 has 2 divisors, whose sum is σ = 22740812. Its totient is φ = 22740810.

The previous prime is 22740797. The next prime is 22740833. The reversal of 22740811 is 11804722.

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-22740811 is a prime.

It is not a weakly prime, because it can be changed into another prime (22740841) 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, 11370405 + 11370406.

It is an arithmetic number, because the mean of its divisors is an integer number (11370406).

Almost surely, 2^22740811 is an apocalyptic number.

22740811 is a deficient number, since it is larger than the sum of its proper divisors (1).

22740811 is an equidigital number, since it uses as much as digits as its factorization.

22740811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 25.

The square root of 22740811 is about 4768.7326408596. The cubic root of 22740811 is about 283.3144004266.

The spelling of 22740811 in words is "twenty-two million, seven hundred forty thousand, eight hundred eleven".