22689736 has 16 divisors (see below), whose sum is σ = 42595740. Its totient is φ = 11330880.

The previous prime is 22689731. The next prime is 22689739. The reversal of 22689736 is 63798622.

It can be written as a sum of positive squares in 2 ways, for example, as 22033636 + 656100 = 4694^2 + 810^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22689692 and 22689701.

It is not an unprimeable number, because it can be changed into a prime (22689731) 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 3 ways as a sum of consecutive naturals, for example, 9106 + ... + 11326.

Almost surely, 2^22689736 is an apocalyptic number.

It is an amenable number.

22689736 is a deficient number, since it is larger than the sum of its proper divisors (19906004).

22689736 is a wasteful number, since it uses less digits than its factorization.

22689736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3504 (or 3500 counting only the distinct ones).

The product of its digits is 217728, while the sum is 43.

The square root of 22689736 is about 4763.3744341590. The cubic root of 22689736 is about 283.1021369651.

The spelling of 22689736 in words is "twenty-two million, six hundred eighty-nine thousand, seven hundred thirty-six".