22066929 has 6 divisors (see below), whose sum is σ = 31874466. Its totient is φ = 14711280.

The previous prime is 22066909. The next prime is 22066937. The reversal of 22066929 is 92966022.

It can be written as a sum of positive squares in only one way, i.e., 21762225 + 304704 = 4665^2 + 552^2 .

It is not a de Polignac number, because 22066929 - 2⁷ = 22066801 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22066893 and 22066902.

It is not an unprimeable number, because it can be changed into a prime (22066909) 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 in 5 ways as a sum of consecutive naturals, for example, 1225932 + ... + 1225949.

It is an arithmetic number, because the mean of its divisors is an integer number (5312411).

Almost surely, 2^22066929 is an apocalyptic number.

It is an amenable number.

22066929 is a deficient number, since it is larger than the sum of its proper divisors (9807537).

22066929 is a wasteful number, since it uses less digits than its factorization.

22066929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2451887 (or 2451884 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The square root of 22066929 is about 4697.5449971235. The cubic root of 22066929 is about 280.4877934196.

The spelling of 22066929 in words is "twenty-two million, sixty-six thousand, nine hundred twenty-nine".