22689536 has 36 divisors (see below), whose sum is σ = 45597552. Its totient is φ = 11268096.

The previous prime is 22689533. The next prime is 22689559. The reversal of 22689536 is 63598622.

It is a junction number, because it is equal to n+sod(n) for n = 22689493 and 22689502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22689533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67160 + ... + 67496.

Almost surely, 2^22689536 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22689536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22798776).

22689536 is an abundant number, since it is smaller than the sum of its proper divisors (22908016).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22689536 is an equidigital number, since it uses as much as digits as its factorization.

22689536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616 (or 602 counting only the distinct ones).

The product of its digits is 155520, while the sum is 41.

The square root of 22689536 is about 4763.3534405920. The cubic root of 22689536 is about 283.1013051559.

The spelling of 22689536 in words is "twenty-two million, six hundred eighty-nine thousand, five hundred thirty-six".