22740866 has 16 divisors (see below), whose sum is σ = 37096056. Its totient is φ = 10411776.

The previous prime is 22740863. The next prime is 22740877. The reversal of 22740866 is 66804722.

It can be written as a sum of positive squares in 4 ways, for example, as 20839225 + 1901641 = 4565^2 + 1379^2 .

It is not an unprimeable number, because it can be changed into a prime (22740863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7781 + ... + 10296.

Almost surely, 2^22740866 is an apocalyptic number.

22740866 is a deficient number, since it is larger than the sum of its proper divisors (14355190).

22740866 is a wasteful number, since it uses less digits than its factorization.

22740866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18133.

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 22740866 is about 4768.7384075875. The cubic root of 22740866 is about 283.3146288306.

The spelling of 22740866 in words is "twenty-two million, seven hundred forty thousand, eight hundred sixty-six".