22446636 has 24 divisors (see below), whose sum is σ = 53491200. Its totient is φ = 7322832.

The previous prime is 22446629. The next prime is 22446649. The reversal of 22446636 is 63664422.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 22446597 and 22446606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19336 + ... + 20463.

It is an arithmetic number, because the mean of its divisors is an integer number (2228800).

Almost surely, 2^22446636 is an apocalyptic number.

It is an amenable number.

22446636 is an abundant number, since it is smaller than the sum of its proper divisors (31044564).

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

22446636 is a wasteful number, since it uses less digits than its factorization.

22446636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39853 (or 39851 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

The square root of 22446636 is about 4737.7880915043. The cubic root of 22446636 is about 282.0874433317.

The spelling of 22446636 in words is "twenty-two million, four hundred forty-six thousand, six hundred thirty-six".