22409684 has 18 divisors (see below), whose sum is σ = 43107162. Its totient is φ = 10186000.

The previous prime is 22409669. The next prime is 22409687. The reversal of 22409684 is 48690422.

It can be written as a sum of positive squares in only one way, i.e., 17472400 + 4937284 = 4180^2 + 2222^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22409687) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22667 + ... + 23634.

Almost surely, 2^22409684 is an apocalyptic number.

It is an amenable number.

22409684 is a deficient number, since it is larger than the sum of its proper divisors (20697478).

22409684 is a wasteful number, since it uses less digits than its factorization.

22409684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46327 (or 46314 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 35.

The square root of 22409684 is about 4733.8867751563. The cubic root of 22409684 is about 281.9325660734.

The spelling of 22409684 in words is "twenty-two million, four hundred nine thousand, six hundred eighty-four".