22643936 has 24 divisors (see below), whose sum is σ = 50949360. Its totient is φ = 9704448.

The previous prime is 22643921. The next prime is 22643969. The reversal of 22643936 is 63934622.

It is a junction number, because it is equal to n+sod(n) for n = 22643896 and 22643905.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50321 + ... + 50768.

It is an arithmetic number, because the mean of its divisors is an integer number (2122890).

Almost surely, 2^22643936 is an apocalyptic number.

It is an amenable number.

22643936 is an abundant number, since it is smaller than the sum of its proper divisors (28305424).

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

22643936 is a wasteful number, since it uses less digits than its factorization.

22643936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101106 (or 101098 counting only the distinct ones).

The product of its digits is 46656, while the sum is 35.

The square root of 22643936 is about 4758.5644894233. The cubic root of 22643936 is about 282.9115249071.

The spelling of 22643936 in words is "twenty-two million, six hundred forty-three thousand, nine hundred thirty-six".