22745866 has 16 divisors (see below), whose sum is σ = 40084128. Its totient is φ = 9543600.

The previous prime is 22745837. The next prime is 22745903. The reversal of 22745866 is 66854722.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39480 + ... + 40051.

It is an arithmetic number, because the mean of its divisors is an integer number (2505258).

Almost surely, 2^22745866 is an apocalyptic number.

22745866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

22745866 is a deficient number, since it is larger than the sum of its proper divisors (17338262).

22745866 is a wasteful number, since it uses less digits than its factorization.

22745866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79557.

The product of its digits is 161280, while the sum is 40.

The square root of 22745866 is about 4769.2626264445. The cubic root of 22745866 is about 283.3353912961.

The spelling of 22745866 in words is "twenty-two million, seven hundred forty-five thousand, eight hundred sixty-six".