22266729 has 12 divisors (see below), whose sum is σ = 32228976. Its totient is φ = 14814072.

The previous prime is 22266697. The next prime is 22266743. The reversal of 22266729 is 92766222.

It is not a de Polignac number, because 22266729 - 2⁵ = 22266697 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 22266693 and 22266702.

It is not an unprimeable number, because it can be changed into a prime (22266799) 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 11 ways as a sum of consecutive naturals, for example, 2662 + ... + 7184.

It is an arithmetic number, because the mean of its divisors is an integer number (2685748).

Almost surely, 2^22266729 is an apocalyptic number.

It is an amenable number.

22266729 is a deficient number, since it is larger than the sum of its proper divisors (9962247).

22266729 is a wasteful number, since it uses less digits than its factorization.

22266729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5076 (or 5073 counting only the distinct ones).

The product of its digits is 36288, while the sum is 36.

The square root of 22266729 is about 4718.7635032919. The cubic root of 22266729 is about 281.3317889538.

The spelling of 22266729 in words is "twenty-two million, two hundred sixty-six thousand, seven hundred twenty-nine".